diff --git a/CHANGELOG b/CHANGELOG
index 0781822..d41583b 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,4 +1,4 @@
-Version 0.9.3 prerelease (2011.05.29):
+Version 0.9.3 prerelease (2011.06.04):
     * added:   German translation made by
                Moritz Beleites <morbel at gmx.net>
     * added:   on display tab: an option how many digits should be grouped
@@ -10,6 +10,7 @@ Version 0.9.3 prerelease (2011.05.29):
     * updated: Chinese translation
     * fixed:   ttcalc didn't correctly delete variables/functions from its config file
                so when you restarted the program you still had the deleted variables/functions
+    * fixed:   option: "parameters separated by" was not correctly read from the config file
 
 
 Version 0.9.2 (2010.09.24):
diff --git a/setup/innosetup.iss b/setup/innosetup.iss
index 06ac544..ccd376b 100644
--- a/setup/innosetup.iss
+++ b/setup/innosetup.iss
@@ -1,5 +1,4 @@
-; Script generated by the Inno Setup Script Wizard.
-; SEE THE DOCUMENTATION FOR DETAILS ON CREATING INNO SETUP SCRIPT FILES!
+; innosetup script
 
 [Setup]
 AppName=TTCalc
@@ -24,13 +23,14 @@ UsePreviousAppDir=yes
 
 [Languages]
 Name: "english"; MessagesFile: "compiler:Default.isl"
-Name: "polish"; MessagesFile: "compiler:Languages\Polish.isl"
+Name: "polish";  MessagesFile: "compiler:Languages\Polish.isl"
 Name: "spanish"; MessagesFile: "compiler:Languages\Spanish.isl"
-Name: "danish"; MessagesFile: "compiler:Languages\Danish.isl"
+Name: "danish";  MessagesFile: "compiler:Languages\Danish.isl"
 Name: "chinese"; MessagesFile: "compiler:Languages\ChineseSimp-12-5.1.11.isl"
 Name: "russian"; MessagesFile: "compiler:Languages\Russian.isl"
-Name: "swedish"; MessagesFile: "compiler:Languages\Swedish.isl"
+Name: "swedish"; MessagesFile: "compiler:Languages\Swedish-10-5.1.11.isl"
 Name: "italian"; MessagesFile: "compiler:Languages\Italian.isl"
+Name: "german";  MessagesFile: "compiler:Languages\German.isl"
 
 [InstallDelete]
 ; prior to 0.8.3 we were using mingwm10.dll (now it is not needed and will be deleted if exists)
@@ -41,16 +41,22 @@ Name: "desktopicon"; Description: "{cm:CreateDesktopIcon}"; GroupDescription: "{
 
 [Files]
 Source: "..\src\ttcalc.exe";   DestDir: "{app}"; Flags: ignoreversion
-Source: "..\help\ttcalc.chm";   DestDir: "{app}"; Flags: ignoreversion
-Source: "..\COPYRIGHT";   DestDir: "{app}"; Flags: ignoreversion
-Source: "..\CHANGELOG";   DestDir: "{app}"; Flags: ignoreversion
-Source: "..\README";   DestDir: "{app}"; Flags: ignoreversion
+Source: "..\help\ttcalc.chm";  DestDir: "{app}"; Flags: ignoreversion
+Source: "..\COPYRIGHT";        DestDir: "{app}"; Flags: ignoreversion
+Source: "..\CHANGELOG";        DestDir: "{app}"; Flags: ignoreversion
+Source: "..\README";           DestDir: "{app}"; Flags: ignoreversion
 ; now we do not use *.ini file in the installer
-; NOTE: Don't use "Flags: ignoreversion" on any shared system files
+
+[Dirs]
+Name: "{userappdata}/TTCalc" ; Flags: uninsneveruninstall
+
+[INI]
+Filename: "{userappdata}/TTCalc/ttcalc.ini"; Section: "GLOBAL"; Key: "language.setup"; String: "{language}"
+
 
 [Icons]
 Name: "{group}\TTCalc"; Filename: "{app}\ttcalc.exe"; WorkingDir: "{app}"
-Name: "{group}\Help"; Filename: "{app}\ttcalc.chm"; WorkingDir: "{app}"
+Name: "{group}\Help";   Filename: "{app}\ttcalc.chm"; WorkingDir: "{app}"
 Name: "{group}\{cm:UninstallProgram,TTCalc}"; Filename: "{uninstallexe}"
 Name: "{commondesktop}\TTCalc"; Filename: "{app}\ttcalc.exe"; WorkingDir: "{app}"; Tasks: desktopicon
 
diff --git a/src/Makefile b/src/Makefile
index 3513690..89d74e1 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -1,3 +1,6 @@
+include Makefile.o.dep
+include Makefile.help.dep
+
 CC     = g++
 #CFLAGS = -Wall -pedantic -s -O2 -mwindows -I../../ttmath -DTTCALC_CONVERT
 CFLAGS = -Wall -pedantic -s -O2 -mwindows -I../../ttmath -DTTMATH_DONT_USE_WCHAR
@@ -14,10 +17,14 @@ setupname = ttcalc-setup.exe
 all: ttcalc
 
 
-include Makefile.dep
+%.o: %.cpp
+	$(CC) -c $(CFLAGS) $<
 
 
-ttcalc: $(o)
+ttcalc: $(name)
+
+
+$(name): $(o)
 	$(CC) -o $(name) $(CFLAGS) $(o) -lcomctl32 -lwininet
 
 
@@ -26,18 +33,34 @@ resource.o: resource.rc
 	windres resource.rc resource.o
 
 
-help: $(helpdep)
+help: ../help/$(helpname)
+
+
+../help/$(helpname): $(helpsrc)
 	Makefile.help.sh
 
 
+setup: ../setup/$(setupname)
 
-setup: $(setupdep)
+
+../setup/$(setupname): $(name) ../help/$(helpname) ../setup/innosetup.iss ../setup/COPYRIGHT ../COPYRIGHT ../CHANGELOG ../README
 	iscc ../setup/innosetup.iss
 
 
+depend:
+	makedepend -Y. -I../../ttmath -f- *.cpp | sed "s/[\\]/\//g" > Makefile.cpp.dep
+	echo -n "o = resource.o " > Makefile.o.dep
+	ls -1 *.cpp | xargs -I foo echo -n foo " " | sed -E "s/([^\.]*)\.cpp[ ]/\1\.o/g" >> Makefile.o.dep
+	echo -n "helpsrc = " > Makefile.help.dep
+	ls -1 ../help/*.html ../help/*.css ../help/*.hhp ../help/*.hhk ../help/*.hhc | xargs -I foo echo -n foo " " >> Makefile.help.dep
+
+
 clean:
 	rm -f *.o
 	rm -f $(name)
 	rm -f ttcalcp.exe
 	rm -f ../help/$(helpname)
 	rm -f ../setup/$(setupname)
+
+
+include Makefile.cpp.dep
diff --git a/src/Makefile.cpp.dep b/src/Makefile.cpp.dep
new file mode 100644
index 0000000..fc925dd
--- /dev/null
+++ b/src/Makefile.cpp.dep
@@ -0,0 +1,176 @@
+# DO NOT DELETE
+
+calculation.o: compileconfig.h parsermanager.h resource.h programresources.h
+calculation.o: iniparser.h languages.h bigtypes.h
+calculation.o: ../../ttmath/ttmath/ttmath.h ../../ttmath/ttmath/ttmathbig.h
+calculation.o: ../../ttmath/ttmath/ttmathint.h
+calculation.o: ../../ttmath/ttmath/ttmathuint.h
+calculation.o: ../../ttmath/ttmath/ttmathtypes.h
+calculation.o: ../../ttmath/ttmath/ttmathmisc.h
+calculation.o: ../../ttmath/ttmath/ttmathuint_x86.h
+calculation.o: ../../ttmath/ttmath/ttmathuint_x86_64.h
+calculation.o: ../../ttmath/ttmath/ttmathuint_noasm.h
+calculation.o: ../../ttmath/ttmath/ttmaththreads.h
+calculation.o: ../../ttmath/ttmath/ttmathobjects.h
+calculation.o: ../../ttmath/ttmath/ttmathparser.h
+calculation.o: ../../ttmath/ttmath/ttmath.h threadcontroller.h
+calculation.o: ../../ttmath/ttmath/ttmathobjects.h stopcalculating.h
+calculation.o: ../../ttmath/ttmath/ttmathtypes.h convert.h tabs.h messages.h
+convert.o: convert.h compileconfig.h bigtypes.h ../../ttmath/ttmath/ttmath.h
+convert.o: ../../ttmath/ttmath/ttmathbig.h ../../ttmath/ttmath/ttmathint.h
+convert.o: ../../ttmath/ttmath/ttmathuint.h ../../ttmath/ttmath/ttmathtypes.h
+convert.o: ../../ttmath/ttmath/ttmathmisc.h
+convert.o: ../../ttmath/ttmath/ttmathuint_x86.h
+convert.o: ../../ttmath/ttmath/ttmathuint_x86_64.h
+convert.o: ../../ttmath/ttmath/ttmathuint_noasm.h
+convert.o: ../../ttmath/ttmath/ttmaththreads.h
+convert.o: ../../ttmath/ttmath/ttmathobjects.h
+convert.o: ../../ttmath/ttmath/ttmathparser.h ../../ttmath/ttmath/ttmath.h
+download.o: compileconfig.h download.h
+functions.o: compileconfig.h tabs.h resource.h messages.h
+functions.o: ../../ttmath/ttmath/ttmathtypes.h programresources.h iniparser.h
+functions.o: languages.h bigtypes.h ../../ttmath/ttmath/ttmath.h
+functions.o: ../../ttmath/ttmath/ttmathbig.h ../../ttmath/ttmath/ttmathint.h
+functions.o: ../../ttmath/ttmath/ttmathuint.h
+functions.o: ../../ttmath/ttmath/ttmathtypes.h
+functions.o: ../../ttmath/ttmath/ttmathmisc.h
+functions.o: ../../ttmath/ttmath/ttmathuint_x86.h
+functions.o: ../../ttmath/ttmath/ttmathuint_x86_64.h
+functions.o: ../../ttmath/ttmath/ttmathuint_noasm.h
+functions.o: ../../ttmath/ttmath/ttmaththreads.h
+functions.o: ../../ttmath/ttmath/ttmathobjects.h
+functions.o: ../../ttmath/ttmath/ttmathparser.h ../../ttmath/ttmath/ttmath.h
+functions.o: threadcontroller.h ../../ttmath/ttmath/ttmathobjects.h
+functions.o: stopcalculating.h convert.h
+iniparser.o: compileconfig.h iniparser.h
+languages.o: compileconfig.h languages.h bigtypes.h
+languages.o: ../../ttmath/ttmath/ttmath.h ../../ttmath/ttmath/ttmathbig.h
+languages.o: ../../ttmath/ttmath/ttmathint.h ../../ttmath/ttmath/ttmathuint.h
+languages.o: ../../ttmath/ttmath/ttmathtypes.h
+languages.o: ../../ttmath/ttmath/ttmathmisc.h
+languages.o: ../../ttmath/ttmath/ttmathuint_x86.h
+languages.o: ../../ttmath/ttmath/ttmathuint_x86_64.h
+languages.o: ../../ttmath/ttmath/ttmathuint_noasm.h
+languages.o: ../../ttmath/ttmath/ttmaththreads.h
+languages.o: ../../ttmath/ttmath/ttmathobjects.h
+languages.o: ../../ttmath/ttmath/ttmathparser.h ../../ttmath/ttmath/ttmath.h
+mainwindow.o: compileconfig.h winmain.h programresources.h iniparser.h
+mainwindow.o: languages.h bigtypes.h ../../ttmath/ttmath/ttmath.h
+mainwindow.o: ../../ttmath/ttmath/ttmathbig.h ../../ttmath/ttmath/ttmathint.h
+mainwindow.o: ../../ttmath/ttmath/ttmathuint.h
+mainwindow.o: ../../ttmath/ttmath/ttmathtypes.h
+mainwindow.o: ../../ttmath/ttmath/ttmathmisc.h
+mainwindow.o: ../../ttmath/ttmath/ttmathuint_x86.h
+mainwindow.o: ../../ttmath/ttmath/ttmathuint_x86_64.h
+mainwindow.o: ../../ttmath/ttmath/ttmathuint_noasm.h
+mainwindow.o: ../../ttmath/ttmath/ttmaththreads.h
+mainwindow.o: ../../ttmath/ttmath/ttmathobjects.h
+mainwindow.o: ../../ttmath/ttmath/ttmathparser.h ../../ttmath/ttmath/ttmath.h
+mainwindow.o: threadcontroller.h ../../ttmath/ttmath/ttmathobjects.h
+mainwindow.o: stopcalculating.h ../../ttmath/ttmath/ttmathtypes.h convert.h
+mainwindow.o: resource.h messages.h tabs.h pad.h update.h download.h misc.h
+pad.o: ../../ttmath/ttmath/ttmath.h ../../ttmath/ttmath/ttmathbig.h
+pad.o: ../../ttmath/ttmath/ttmathint.h ../../ttmath/ttmath/ttmathuint.h
+pad.o: ../../ttmath/ttmath/ttmathtypes.h ../../ttmath/ttmath/ttmathmisc.h
+pad.o: ../../ttmath/ttmath/ttmathuint_x86.h
+pad.o: ../../ttmath/ttmath/ttmathuint_x86_64.h
+pad.o: ../../ttmath/ttmath/ttmathuint_noasm.h
+pad.o: ../../ttmath/ttmath/ttmaththreads.h
+pad.o: ../../ttmath/ttmath/ttmathobjects.h ../../ttmath/ttmath/ttmathparser.h
+pad.o: ../../ttmath/ttmath/ttmath.h programresources.h compileconfig.h
+pad.o: iniparser.h languages.h bigtypes.h threadcontroller.h
+pad.o: ../../ttmath/ttmath/ttmathobjects.h stopcalculating.h
+pad.o: ../../ttmath/ttmath/ttmathtypes.h convert.h resource.h messages.h
+pad.o: pad.h
+parsermanager.o: compileconfig.h parsermanager.h resource.h
+parsermanager.o: programresources.h iniparser.h languages.h bigtypes.h
+parsermanager.o: ../../ttmath/ttmath/ttmath.h ../../ttmath/ttmath/ttmathbig.h
+parsermanager.o: ../../ttmath/ttmath/ttmathint.h
+parsermanager.o: ../../ttmath/ttmath/ttmathuint.h
+parsermanager.o: ../../ttmath/ttmath/ttmathtypes.h
+parsermanager.o: ../../ttmath/ttmath/ttmathmisc.h
+parsermanager.o: ../../ttmath/ttmath/ttmathuint_x86.h
+parsermanager.o: ../../ttmath/ttmath/ttmathuint_x86_64.h
+parsermanager.o: ../../ttmath/ttmath/ttmathuint_noasm.h
+parsermanager.o: ../../ttmath/ttmath/ttmaththreads.h
+parsermanager.o: ../../ttmath/ttmath/ttmathobjects.h
+parsermanager.o: ../../ttmath/ttmath/ttmathparser.h
+parsermanager.o: ../../ttmath/ttmath/ttmath.h threadcontroller.h
+parsermanager.o: ../../ttmath/ttmath/ttmathobjects.h stopcalculating.h
+parsermanager.o: ../../ttmath/ttmath/ttmathtypes.h convert.h tabs.h
+parsermanager.o: messages.h
+programresources.o: compileconfig.h programresources.h iniparser.h
+programresources.o: languages.h bigtypes.h ../../ttmath/ttmath/ttmath.h
+programresources.o: ../../ttmath/ttmath/ttmathbig.h
+programresources.o: ../../ttmath/ttmath/ttmathint.h
+programresources.o: ../../ttmath/ttmath/ttmathuint.h
+programresources.o: ../../ttmath/ttmath/ttmathtypes.h
+programresources.o: ../../ttmath/ttmath/ttmathmisc.h
+programresources.o: ../../ttmath/ttmath/ttmathuint_x86.h
+programresources.o: ../../ttmath/ttmath/ttmathuint_x86_64.h
+programresources.o: ../../ttmath/ttmath/ttmathuint_noasm.h
+programresources.o: ../../ttmath/ttmath/ttmaththreads.h
+programresources.o: ../../ttmath/ttmath/ttmathobjects.h
+programresources.o: ../../ttmath/ttmath/ttmathparser.h
+programresources.o: ../../ttmath/ttmath/ttmath.h threadcontroller.h
+programresources.o: ../../ttmath/ttmath/ttmathobjects.h stopcalculating.h
+programresources.o: ../../ttmath/ttmath/ttmathtypes.h convert.h
+tabs.o: compileconfig.h tabs.h resource.h messages.h
+tabs.o: ../../ttmath/ttmath/ttmathtypes.h programresources.h iniparser.h
+tabs.o: languages.h bigtypes.h ../../ttmath/ttmath/ttmath.h
+tabs.o: ../../ttmath/ttmath/ttmathbig.h ../../ttmath/ttmath/ttmathint.h
+tabs.o: ../../ttmath/ttmath/ttmathuint.h ../../ttmath/ttmath/ttmathtypes.h
+tabs.o: ../../ttmath/ttmath/ttmathmisc.h ../../ttmath/ttmath/ttmathuint_x86.h
+tabs.o: ../../ttmath/ttmath/ttmathuint_x86_64.h
+tabs.o: ../../ttmath/ttmath/ttmathuint_noasm.h
+tabs.o: ../../ttmath/ttmath/ttmaththreads.h
+tabs.o: ../../ttmath/ttmath/ttmathobjects.h
+tabs.o: ../../ttmath/ttmath/ttmathparser.h ../../ttmath/ttmath/ttmath.h
+tabs.o: threadcontroller.h ../../ttmath/ttmath/ttmathobjects.h
+tabs.o: stopcalculating.h convert.h
+threadcontroller.o: threadcontroller.h ../../ttmath/ttmath/ttmathobjects.h
+threadcontroller.o: stopcalculating.h compileconfig.h
+threadcontroller.o: ../../ttmath/ttmath/ttmathtypes.h
+update.o: compileconfig.h update.h download.h programresources.h iniparser.h
+update.o: languages.h bigtypes.h ../../ttmath/ttmath/ttmath.h
+update.o: ../../ttmath/ttmath/ttmathbig.h ../../ttmath/ttmath/ttmathint.h
+update.o: ../../ttmath/ttmath/ttmathuint.h ../../ttmath/ttmath/ttmathtypes.h
+update.o: ../../ttmath/ttmath/ttmathmisc.h
+update.o: ../../ttmath/ttmath/ttmathuint_x86.h
+update.o: ../../ttmath/ttmath/ttmathuint_x86_64.h
+update.o: ../../ttmath/ttmath/ttmathuint_noasm.h
+update.o: ../../ttmath/ttmath/ttmaththreads.h
+update.o: ../../ttmath/ttmath/ttmathobjects.h
+update.o: ../../ttmath/ttmath/ttmathparser.h ../../ttmath/ttmath/ttmath.h
+update.o: threadcontroller.h ../../ttmath/ttmath/ttmathobjects.h
+update.o: stopcalculating.h ../../ttmath/ttmath/ttmathtypes.h convert.h
+update.o: messages.h resource.h winmain.h tabs.h pad.h misc.h
+variables.o: compileconfig.h tabs.h resource.h messages.h
+variables.o: ../../ttmath/ttmath/ttmathtypes.h programresources.h iniparser.h
+variables.o: languages.h bigtypes.h ../../ttmath/ttmath/ttmath.h
+variables.o: ../../ttmath/ttmath/ttmathbig.h ../../ttmath/ttmath/ttmathint.h
+variables.o: ../../ttmath/ttmath/ttmathuint.h
+variables.o: ../../ttmath/ttmath/ttmathtypes.h
+variables.o: ../../ttmath/ttmath/ttmathmisc.h
+variables.o: ../../ttmath/ttmath/ttmathuint_x86.h
+variables.o: ../../ttmath/ttmath/ttmathuint_x86_64.h
+variables.o: ../../ttmath/ttmath/ttmathuint_noasm.h
+variables.o: ../../ttmath/ttmath/ttmaththreads.h
+variables.o: ../../ttmath/ttmath/ttmathobjects.h
+variables.o: ../../ttmath/ttmath/ttmathparser.h ../../ttmath/ttmath/ttmath.h
+variables.o: threadcontroller.h ../../ttmath/ttmath/ttmathobjects.h
+variables.o: stopcalculating.h convert.h
+winmain.o: compileconfig.h winmain.h programresources.h iniparser.h
+winmain.o: languages.h bigtypes.h ../../ttmath/ttmath/ttmath.h
+winmain.o: ../../ttmath/ttmath/ttmathbig.h ../../ttmath/ttmath/ttmathint.h
+winmain.o: ../../ttmath/ttmath/ttmathuint.h ../../ttmath/ttmath/ttmathtypes.h
+winmain.o: ../../ttmath/ttmath/ttmathmisc.h
+winmain.o: ../../ttmath/ttmath/ttmathuint_x86.h
+winmain.o: ../../ttmath/ttmath/ttmathuint_x86_64.h
+winmain.o: ../../ttmath/ttmath/ttmathuint_noasm.h
+winmain.o: ../../ttmath/ttmath/ttmaththreads.h
+winmain.o: ../../ttmath/ttmath/ttmathobjects.h
+winmain.o: ../../ttmath/ttmath/ttmathparser.h ../../ttmath/ttmath/ttmath.h
+winmain.o: threadcontroller.h ../../ttmath/ttmath/ttmathobjects.h
+winmain.o: stopcalculating.h ../../ttmath/ttmath/ttmathtypes.h convert.h
+winmain.o: resource.h messages.h tabs.h pad.h update.h download.h
diff --git a/src/Makefile.dep b/src/Makefile.dep
deleted file mode 100644
index c41eb21..0000000
--- a/src/Makefile.dep
+++ /dev/null
@@ -1,53 +0,0 @@
-# add "resource.o" to "o" as well
-o = resource.o calculation.o convert.o download.o functions.o iniparser.o languages.o mainwindow.o misc.o pad.o parsermanager.o programresources.o tabs.o threadcontroller.o update.o variables.o winmain.o
-	
-
-calculation.o:		calculation.cpp compileconfig.h parsermanager.h resource.h programresources.h iniparser.h languages.h bigtypes.h threadcontroller.h stopcalculating.h convert.h tabs.h messages.h
-convert.o:			convert.cpp convert.h compileconfig.h bigtypes.h
-download.o:			download.cpp compileconfig.h download.h
-functions.o:		functions.cpp compileconfig.h tabs.h resource.h messages.h programresources.h iniparser.h languages.h bigtypes.h threadcontroller.h stopcalculating.h convert.h
-iniparser.o:		iniparser.cpp compileconfig.h iniparser.h
-languages.o:		languages.cpp compileconfig.h languages.h bigtypes.h
-mainwindow.o:		mainwindow.cpp compileconfig.h winmain.h programresources.h iniparser.h languages.h bigtypes.h threadcontroller.h stopcalculating.h convert.h resource.h messages.h tabs.h pad.h update.h download.h misc.h
-misc.o:				misc.cpp
-pad.o:				pad.cpp programresources.h compileconfig.h iniparser.h languages.h bigtypes.h threadcontroller.h stopcalculating.h convert.h resource.h messages.h pad.h
-parsermanager.o:	parsermanager.cpp compileconfig.h parsermanager.h resource.h programresources.h iniparser.h languages.h bigtypes.h threadcontroller.h stopcalculating.h convert.h tabs.h messages.h
-programresources.o:	programresources.cpp compileconfig.h programresources.h iniparser.h languages.h bigtypes.h threadcontroller.h stopcalculating.h convert.h
-tabs.o:				tabs.cpp compileconfig.h tabs.h resource.h messages.h programresources.h iniparser.h languages.h bigtypes.h threadcontroller.h stopcalculating.h convert.h
-threadcontroller.o:	threadcontroller.cpp threadcontroller.h stopcalculating.h compileconfig.h
-update.o:			update.cpp compileconfig.h update.h download.h programresources.h iniparser.h languages.h bigtypes.h threadcontroller.h stopcalculating.h convert.h messages.h resource.h winmain.h tabs.h pad.h misc.h
-variables.o:		variables.cpp compileconfig.h tabs.h resource.h messages.h programresources.h iniparser.h languages.h bigtypes.h threadcontroller.h stopcalculating.h convert.h
-winmain.o:			winmain.cpp compileconfig.h winmain.h programresources.h iniparser.h languages.h bigtypes.h threadcontroller.h stopcalculating.h convert.h resource.h messages.h tabs.h pad.h update.h download.h
-
-
-
-.SUFFIXES: .cpp .o
-
-.cpp.o:
-	$(CC) -c $(CFLAGS) $<
-
-
-helpdep = ../help/accuracy.html					\
-../help/arithmetic_functions.html				\
-../help/bitwise_functions.html					\
-../help/conversions_deg_rad_grad.html			\
-../help/help.hhp								\
-../help/hyperbolic_functions.html				\
-../help/index.hhk								\
-../help/index.html								\
-../help/inverse_hyperbolic_functions.html		\
-../help/inverse_trigonometric_functions.html	\
-../help/logarithm_exponential.html				\
-../help/logical_functions.html					\
-../help/operators_priority.html					\
-../help/other_functions.html					\
-../help/rounding_functions.html					\
-../help/styles.css								\
-../help/tips.html								\
-../help/toc.hhc									\
-../help/trigonometric_functions.html			\
-../help/userfunctions.html						\
-../help/values_and_std_operators.html
-
-
-setupdep = ttcalc help ../setup/innosetup.iss ../setup/COPYRIGHT ../COPYRIGHT ../CHANGELOG ../README
diff --git a/src/Makefile.help.dep b/src/Makefile.help.dep
new file mode 100644
index 0000000..0fe3a1d
--- /dev/null
+++ b/src/Makefile.help.dep
@@ -0,0 +1 @@
+helpsrc = ../help/accuracy.html  ../help/arithmetic_functions.html  ../help/bitwise_functions.html  ../help/conversions_deg_rad_grad.html  ../help/help.hhp  ../help/hyperbolic_functions.html  ../help/index.hhk  ../help/index.html  ../help/inverse_hyperbolic_functions.html  ../help/inverse_trigonometric_functions.html  ../help/logarithm_exponential.html  ../help/logical_functions.html  ../help/operators_priority.html  ../help/other_functions.html  ../help/rounding_functions.html  ../help/styles.css  ../help/tips.html  ../help/toc.hhc  ../help/trigonometric_functions.html  ../help/userfunctions.html  ../help/values_and_std_operators.html  
\ No newline at end of file
diff --git a/src/Makefile.o.dep b/src/Makefile.o.dep
new file mode 100644
index 0000000..caf2064
--- /dev/null
+++ b/src/Makefile.o.dep
@@ -0,0 +1 @@
+o = resource.o calculation.o convert.o download.o functions.o iniparser.o languages.o mainwindow.o misc.o pad.o parsermanager.o programresources.o tabs.o threadcontroller.o update.o variables.o winmain.o 
\ No newline at end of file
diff --git a/src/Makefileportable b/src/Makefileportable
index 67ffc53..08b2de0 100644
--- a/src/Makefileportable
+++ b/src/Makefileportable
@@ -1,21 +1,31 @@
+include Makefile.o.dep
+include Makefile.help.dep
+
+
 CC     = g++
 CFLAGS = -Wall -pedantic -s -Os -fno-default-inline -mwindows -I../../ttmath -DTTCALC_PORTABLE -DTTMATH_DONT_USE_WCHAR
 name   = ttcalcp.exe
 compressor = upx
 
+
+
 all: ttcalc
 
-include Makefile.dep
 
-ttcalc: $(o)
+%.o: %.cpp
+	$(CC) -c $(CFLAGS) $<
+
+
+ttcalc: $(name)
+
+
+$(name): $(o)
 	$(CC) -o $(name) $(CFLAGS) $(o) -lcomctl32 -lwininet
 	$(compressor) -7 $(name)
-	
+
+
 resource.o: resource.rc
 	windres -DTTCALC_PORTABLE resource.rc resource.o
 
-clean:
-	rm -f *.o
-	rm -f $(name)
-	rm -f ../help/$(helpname)
 
+include Makefile.cpp.dep
diff --git a/src/languages.cpp b/src/languages.cpp
index 87763d5..43515d3 100644
--- a/src/languages.cpp
+++ b/src/languages.cpp
@@ -37,9 +37,39 @@
 
 #include "compileconfig.h"
 #include "languages.h"
+#include <string.h>
 
 
 
+void Languages::SelectCurrentLanguage(const std::string & lang)
+{
+	// those names should be the same as in [Languages] section in innosetup.iss file
+
+	const char * langtab[] = {
+		"english",
+		"polish",
+		"spanish",
+		"danish",
+		"chinese",
+		"russian",
+		"swedish",
+		"italian",
+		"german"   };
+
+	current_country = en; // default is english
+	size_t len = sizeof(langtab) / sizeof(const char*);
+	size_t i;
+
+	for(i=0 ; i<len ; ++i)
+	{
+		if( strcmp(lang.c_str(), langtab[i]) == 0 )
+		{
+			SetCurrentLanguage((Languages::Country)i);
+			break;
+		}
+	}
+}
+
 
 const char * Languages::ErrorMessage(Country country, ttmath::ErrorCode code)
 {
@@ -604,7 +634,7 @@ void Languages::InitGuiMessagesTab()
 	InsertGuiPair(update_button_next,		"Next");
 	InsertGuiPair(update_button_finish,		"Finish");
 	InsertGuiPair(update_button_cancel,		"Cancel");
-	InsertGuiPair(update_check_at_startup,	"Always check for the update on startup");
+	InsertGuiPair(update_check_at_startup,	"Once every three days check for an update automatically");
 	InsertGuiPair(update_check_for_info,	"Press Next to check for the update...");
 	InsertGuiPair(update_is_new_version,	"Version %d.%d.%d is available, press Next to download...");
 	InsertGuiPair(update_no_new_version1,	"There is not a newer version available.");
@@ -811,7 +841,7 @@ void Languages::InitGuiMessagesTab()
 	InsertGuiPair(update_button_next,		"Dalej");
 	InsertGuiPair(update_button_finish,		"Zakoñcz");
 	InsertGuiPair(update_button_cancel,		"Anuluj");
-	InsertGuiPair(update_check_at_startup,	"Zawsze sprawdzaj aktualizacje podczas uruchamiania");
+	InsertGuiPair(update_check_at_startup,	"Raz na trzy dni sprawdŸ dostêpnoœæ aktualizacji automatycznie");
 	InsertGuiPair(update_check_for_info,	"Wciœnij Dalej aby sprawdziæ dostêpnoœæ aktualizacji...");
 	InsertGuiPair(update_is_new_version,	"Wersja %d.%d.%d jest dostêpna, wciœnij Dalej aby j¹ pobraæ...");
 	InsertGuiPair(update_no_new_version1,	"Nie ma dostêpnej nowszej wersji programu.");
@@ -1024,7 +1054,7 @@ void Languages::InitGuiMessagesTab()
 	InsertGuiPair(update_button_next,		"Siguiente");
 	InsertGuiPair(update_button_finish,		"Finalizar");
 	InsertGuiPair(update_button_cancel,		"Cancelar");
-	InsertGuiPair(update_check_at_startup,	"Comprobar siempre al comienzo si hay una nueva versión");
+	InsertGuiPair(update_check_at_startup,	"Comprobar siempre al comienzo si hay una nueva versión"); // this text has been changed, need correction!
 	InsertGuiPair(update_check_for_info,	"Pulse Siguiente para ver si hay actualizaciones...");
 	InsertGuiPair(update_is_new_version,	"La versión %d.%d.%d está disponible, pulse Siguiente para descargar...");
 	InsertGuiPair(update_no_new_version1,	"No hay versiones nuevas disponibles.");
@@ -1234,7 +1264,7 @@ void Languages::InitGuiMessagesTab()
 	InsertGuiPair(update_button_next,		"Næste");
 	InsertGuiPair(update_button_finish,		"Færdig");
 	InsertGuiPair(update_button_cancel,		"Annuler");
-	InsertGuiPair(update_check_at_startup,	"Tjek altid for opdateringer ved opstart");
+	InsertGuiPair(update_check_at_startup,	"Tjek altid for opdateringer ved opstart");  // this text has been changed, need correction!
 	InsertGuiPair(update_check_for_info,	"Tryk på Næste for at tjekke for opdateringen...");
 	InsertGuiPair(update_is_new_version,	"Version %d.%d.%d er tilgængelig, tryk på Næste for at downloade...");
 	InsertGuiPair(update_no_new_version1,	"Der er ingen ny version tilgængelig.");
@@ -1444,7 +1474,7 @@ void Languages::InitGuiMessagesTab()
 	InsertGuiPair(update_button_next,		"ÏÂÒ»²½");
 	InsertGuiPair(update_button_finish,		"Íê³É");
 	InsertGuiPair(update_button_cancel,		"È¡Ïû");
-	InsertGuiPair(update_check_at_startup,	"Æô¶¯Ê±×ÜÊǼì²é¸üÐÂ");
+	InsertGuiPair(update_check_at_startup,	"Æô¶¯Ê±×ÜÊǼì²é¸üÐÂ");  // this text has been changed, need correction!
 	InsertGuiPair(update_check_for_info,	"°´\"ÏÂÒ»²½\"½øÐиüÐÂ...");
 	InsertGuiPair(update_is_new_version,	"°æ±¾ %d.%d.%d ¿ÉÓÃ, °´\"ÏÂÒ»²½\"ÏÂÔØ...");
 	InsertGuiPair(update_no_new_version1,	"ûÓпÉÓõÄа汾¡£");
@@ -1659,7 +1689,7 @@ void Languages::InitGuiMessagesTab()
 	InsertGuiPair(update_button_next,		"Äàëåå");
 	InsertGuiPair(update_button_finish,		"Ãîòîâî");
 	InsertGuiPair(update_button_cancel,		"Îòìåíà");
-	InsertGuiPair(update_check_at_startup,	"Ïðîâåðÿòü íàëè÷èå îáíîâëåíèé ïðè çàãðóçêå ïðîãðàììû");
+	InsertGuiPair(update_check_at_startup,	"Ïðîâåðÿòü íàëè÷èå îáíîâëåíèé ïðè çàãðóçêå ïðîãðàììû");  // this text has been changed, need correction!
 	InsertGuiPair(update_check_for_info,	"Íàæìèòå Äàëåå, ÷òîáû ïðîâåðèòü íàëè÷èå îáíîâëåíèé...");
 	InsertGuiPair(update_is_new_version,	"Äîñòóïíà âåðñèÿ %d.%d.%d, íàæìèòå Äàëåå, ÷òîáû ñêà÷àòü å¸...");
 	InsertGuiPair(update_no_new_version1,	"Íåò íîâûõ âåðñèé.");
@@ -2079,7 +2109,7 @@ void Languages::InitGuiMessagesTab()
 	InsertGuiPair(update_button_next,		"Continua");
 	InsertGuiPair(update_button_finish,		"Finito");
 	InsertGuiPair(update_button_cancel,		"Annulla");
-	InsertGuiPair(update_check_at_startup,	"Controlla sempre aggiornamenti all'avvio");
+	InsertGuiPair(update_check_at_startup,	"Controlla sempre aggiornamenti all'avvio");  // this text has been changed, need correction!
 	InsertGuiPair(update_check_for_info,	"Premi Continua per controllare gli aggiornamenti...");
 	InsertGuiPair(update_is_new_version,	"Versione %d.%d.%d disponibile, premi Continua per scaricare...");
 	InsertGuiPair(update_no_new_version1,	"Nessuna versione nuova disponibile.");
@@ -2287,7 +2317,7 @@ void Languages::InitGuiMessagesTab()
 	InsertGuiPair(update_button_next,		"Weiter");
 	InsertGuiPair(update_button_finish,		"Ende");
 	InsertGuiPair(update_button_cancel,		"Abbrechen");
-	InsertGuiPair(update_check_at_startup,	"Beim Start des Programms immer nach Update suchen");
+	InsertGuiPair(update_check_at_startup,	"Beim Start des Programms immer nach Update suchen");  // this text has been changed, need correction!
 	InsertGuiPair(update_check_for_info,	"\"Weiter\", um die Update-Suche zu starten...");
 	InsertGuiPair(update_is_new_version,	"Version %d.%d.%d ist verfügbar \"Weiter\", um den Download zu starten...");
 	InsertGuiPair(update_no_new_version1,	"Es ist keine neuere Version verfügbar.");
diff --git a/src/languages.h b/src/languages.h
index 6d2b004..c236b02 100644
--- a/src/languages.h
+++ b/src/languages.h
@@ -201,9 +201,11 @@ public:
 	// the first item must be with zero index 
 	// and next items must be about one greater (0,1,2,3..)
 	// (after conversion to 'int' we pass it into the std::vector)
+	// lastnotexisting should be the last item
+	// make sure SelectCurrentLanguage(const std::string & lang) is able to recognize a language
 	enum Country
 	{
-		en = 0, pl, sp, da, chn, ru, swe, it, ger
+		en = 0, pl, sp, da, chn, ru, swe, it, ger, lastnotexisting
 	};
 
 
@@ -238,9 +240,18 @@ public:
 
 	void SetCurrentLanguage(Country c)
 	{
+		// we are reading a language from *.ini file
+		// and it is stored as a number
+
+		if( int(c) < 0 || int(c) >= (int)Languages::lastnotexisting )
+			c = en;
+
 		current_country = c;
 	}
 
+	void SelectCurrentLanguage(const std::string & lang);
+
+
 	Country GetCurrentLanguage()
 	{
 		return current_country;
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index d4a97cc..10f88ab 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -1429,10 +1429,13 @@ MENUITEMINFO mi;
 	mi.dwTypeData = const_cast<char*>(GetPrgRes()->GetLanguages()->GuiMessage(Languages::menu_update_available));
 	mi.cch    = 0;
 	mi.wID    = IDM_UPDATE_AVAILABLE;
-
+	
 	HMENU menu = GetMenu(hWnd);
-	InsertMenuItem(menu, IDM_UPDATE_AVAILABLE_INDEX, true, &mi);
 
+	if( !menu )
+		return true;
+
+	InsertMenuItem(menu, IDM_UPDATE_AVAILABLE_INDEX, true, &mi);
 	GetPrgRes()->SetUpdateExists(true); // used for the dynamic menu (for changing languages)
 	DrawMenuBar(hWnd);
 
diff --git a/src/programresources.cpp b/src/programresources.cpp
index 0fd3170..0830d42 100644
--- a/src/programresources.cpp
+++ b/src/programresources.cpp
@@ -619,7 +619,7 @@ void ProgramResources::SetGroupingDigits(int digits)
 	grouping_digits = digits;
 
 	if( grouping_digits < 1 || grouping_digits > 9 )
-		grouping_digits = 1;
+		grouping_digits = 3; // 3 by default
 }
 
 
@@ -1106,6 +1106,7 @@ IniParser iparser;
 IniParser::Section temp_variables, temp_functions;
 IniParser::Section::iterator ic;
 std::string ini_value[30];
+std::string language_setup;
 
 	iparser.ConvertValueToSmallLetters(false);
 	iparser.SectionCaseSensitive(false);
@@ -1113,6 +1114,7 @@ std::string ini_value[30];
 	// we have variables and functions case-sensitive
 	iparser.PatternCaseSensitive(true);
 
+	iparser.Associate( "global|language.setup",			&language_setup );
 	iparser.Associate( "global|always.on.top",			&ini_value[0] );
 	iparser.Associate( "global|view",					&ini_value[1] );
 	iparser.Associate( "global|maximized",				&ini_value[2] );
@@ -1152,72 +1154,94 @@ std::string ini_value[30];
 	if( err == IniParser::err_cant_open_file )
 		return err;
 
-	AddVariablesFunctions(temp_variables, temp_functions, false);
-
-	// we're setting various values
-	always_on_top	= bool( atoi(ini_value[0].c_str()) );
-	view			= atoi(ini_value[1].c_str()) == 0 ? view_normal : view_compact;
-	maximized		= bool( atoi(ini_value[2].c_str()) );
-	
-	x_pos			= atoi( ini_value[3].c_str() );
-	y_pos			= atoi( ini_value[4].c_str() );
-	x_size			= atoi( ini_value[5].c_str() );
-	y_size			= atoi( ini_value[12].c_str() );
-	CheckCoordinates();
-
-	SetPrecision(	atoi(ini_value[6].c_str()) );
-	SetBaseInput(	atoi(ini_value[7].c_str()) );
-	SetBaseOutput(	atoi(ini_value[8].c_str()) );
-
-	SetDisplayAlwaysScientific(	bool(atoi(ini_value[9].c_str())) );
-	SetDisplayWhenScientific(	atoi(ini_value[10].c_str()) );
-	SetDisplayRounding(			atoi(ini_value[11].c_str()) );
-
-	// remove zeroes - in there is not in the config then will be true by default
-	// (from the constructor)
-	if( !ini_value[15].empty() )
-		SetRemovingZeroes( bool(atoi(ini_value[15].c_str())) );
-
-
-	int lang_int = atoi(ini_value[13].c_str());
-
-	if( lang_int < 0 || lang_int > 8 )
-		lang_int = 0;
-
-	languages.SetCurrentLanguage((Languages::Country)lang_int);
-
-	SetDecimalPoint( atoi(ini_value[14].c_str()) );
-	SetDegRadGrad( atoi(ini_value[16].c_str()) );
-
-	pad_x_pos	= atoi( ini_value[17].c_str() );
-	pad_y_pos	= atoi( ini_value[18].c_str() );
-	pad_x_size	= atoi( ini_value[19].c_str() );
-	pad_y_size	= atoi( ini_value[20].c_str() );
-	pad_maximized = bool( atoi(ini_value[21].c_str()) );
-	show_pad    = bool( atoi(ini_value[22].c_str()) );
-	CheckPadCoordinates();
-
-	SetGrouping( atoi(ini_value[23].c_str()) );
-	SetInputDecimalPoint( atoi(ini_value[24].c_str()) );
-	SetParamSep( atoi(ini_value[24].c_str()) );
-
 	if( err != IniParser::err_ok )
 		bad_line = iparser.GetBadLine();
 
-	// check update at startup - true by default (if there is not in the config)
-	// (default from the constructor)
-	if( !ini_value[26].empty() ) 
-		check_update_startup = bool( atoi(ini_value[26].c_str()) );
+	AddVariablesFunctions(temp_variables, temp_functions, false);
 
-	last_update = (time_t)atol(ini_value[27].c_str());
+	// the first file is created by the installer and has only language.setup option
+	// if the rest options are not set then we are not calling ReadGlobalSection()
+	if( IsGlobalSectionSet(ini_value, sizeof(ini_value)/sizeof(std::string)) )
+		ReadGlobalSection(ini_value);
 
-	if( !ini_value[28].empty() )
-		SetGroupingDigits( atoi(ini_value[28].c_str()) );
+	if( !language_setup.empty() )
+		languages.SelectCurrentLanguage(language_setup); // we don't have to remember this variable
 
 return err;
 }
 
 
+int ProgramResources::Int(const std::string & text)
+{
+	return atoi(text.c_str());
+}
+
+
+bool ProgramResources::IsGlobalSectionSet(std::string * ini_value, size_t len)
+{
+	for(size_t i=0 ; i<len ; ++i)
+		if( !ini_value[i].empty() )
+			return true;
+
+return false;
+}
+
+
+
+void ProgramResources::ReadGlobalSection(std::string * ini_value)
+{
+	always_on_top	= Int(ini_value[0]) == 1;
+	view			= Int(ini_value[1]) == 0 ? view_normal : view_compact;
+	maximized		= Int(ini_value[2]) == 1;
+	
+	x_pos			= Int( ini_value[3] );
+	y_pos			= Int( ini_value[4] );
+	x_size			= Int( ini_value[5] );
+	y_size			= Int( ini_value[12] );
+	CheckCoordinates();
+
+	SetPrecision(	Int(ini_value[6]) );
+	SetBaseInput(	Int(ini_value[7]) );
+	SetBaseOutput(	Int(ini_value[8]) );
+
+	SetDisplayAlwaysScientific(	Int(ini_value[9]) == 1 );
+	SetDisplayWhenScientific(	Int(ini_value[10]) );
+	SetDisplayRounding(			Int(ini_value[11]) );
+
+	languages.SetCurrentLanguage((Languages::Country)Int(ini_value[13]));
+	SetDecimalPoint( Int(ini_value[14]) );
+
+	// remove zeroes - if there is not in the config then will be true by default
+	// (from the constructor)
+	if( !ini_value[15].empty() )
+		SetRemovingZeroes( Int(ini_value[15]) == 1 );
+
+	SetDegRadGrad( Int(ini_value[16]) );
+
+	pad_x_pos	= Int( ini_value[17] );
+	pad_y_pos	= Int( ini_value[18] );
+	pad_x_size	= Int( ini_value[19] );
+	pad_y_size	= Int( ini_value[20] );
+	pad_maximized = Int(ini_value[21]) == 1;
+	show_pad      = Int(ini_value[22]) == 1;
+	CheckPadCoordinates();
+
+	SetGrouping(          Int(ini_value[23]) );
+	SetInputDecimalPoint( Int(ini_value[24]) );
+	SetParamSep(          Int(ini_value[25]) );
+
+	// check update once a three day - true by default (if there is not in the config)
+	// (default from the constructor)
+	if( !ini_value[26].empty() ) 
+		check_update_startup = Int(ini_value[26]) == 1;
+
+	last_update = (time_t)atol(ini_value[27].c_str());
+	SetGroupingDigits( Int(ini_value[28]) );
+}
+
+
+
+
 
 void ProgramResources::SaveToFile()
 {
diff --git a/src/programresources.h b/src/programresources.h
index 0ba7ae0..f4b9922 100644
--- a/src/programresources.h
+++ b/src/programresources.h
@@ -505,7 +505,9 @@ private:
 	void CheckCoordinates();
 	void CheckPadCoordinates();
 	void AddVariablesFunctions(IniParser::Section & temp_variables, IniParser::Section & temp_functions, bool if_not_exist);
-
+	void ReadGlobalSection(std::string * ini_value);
+	int  Int(const std::string & text);
+	bool IsGlobalSectionSet(std::string * ini_value, size_t len);
 
 	ttmath::Objects variables;
 	ttmath::Objects functions;
diff --git a/src/resource.rc b/src/resource.rc
index 1f136ed..f530ca0 100644
--- a/src/resource.rc
+++ b/src/resource.rc
@@ -361,20 +361,20 @@ BEGIN
 END
 #endif
 
-IDD_UPDATE_DIALOG DIALOG DISCARDABLE  0, 0, 357, 86
+IDD_UPDATE_DIALOG DIALOG DISCARDABLE  0, 0, 409, 87
 STYLE DS_MODALFRAME | WS_POPUP | WS_CAPTION | WS_SYSMENU
 CAPTION "Check for update"
 FONT 8, "MS Sans Serif"
 BEGIN
-    CTEXT           "Checking for update",IDC_UPDATE_INFO1,7,15,343,10
+    CTEXT           "Checking for update",IDC_UPDATE_INFO1,7,15,394,10
     CONTROL         "Progress1",IDC_PROGRESS,"msctls_progress32",WS_BORDER,7,
-                    38,343,14
-    DEFPUSHBUTTON   "Next",IDC_BUTTON_NEXT,226,65,60,14
-    PUSHBUTTON      "Cancel",IDC_BUTTON_CANCEL,290,65,60,14
-    CTEXT           "url",IDC_UPDATE_INFO2,7,26,343,8
+                    38,395,14
+    DEFPUSHBUTTON   "Next",IDC_BUTTON_NEXT,279,65,60,14
+    PUSHBUTTON      "Cancel",IDC_BUTTON_CANCEL,342,65,60,14
+    CTEXT           "url",IDC_UPDATE_INFO2,7,26,394,8
     CONTROL         "Always check for the update on sturtup",
                     IDC_CHECK_UPDATE_STURTUP,"Button",BS_AUTOCHECKBOX | 
-                    WS_TABSTOP,7,67,206,10
+                    WS_TABSTOP,7,67,269,10
 END
 
 #ifndef TTCALC_PORTABLE
diff --git a/src/tabs.cpp b/src/tabs.cpp
index a8b489d..693bc5f 100644
--- a/src/tabs.cpp
+++ b/src/tabs.cpp
@@ -935,6 +935,7 @@ TCITEM tab;
 }
 
 
+
 BOOL WmTabCommand_SetPrecision1(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 {
 	#ifndef TTCALC_PORTABLE
diff --git a/src/update.cpp b/src/update.cpp
index 554f40d..cc1e00b 100644
--- a/src/update.cpp
+++ b/src/update.cpp
@@ -599,7 +599,7 @@ using namespace Background;
 		if( CheckUpdateFromIni(0, url_, remote_file_name_, major_, minor_, revision_, prerelease_, 0) )
 		{
 			HWND main = GetPrgRes()->GetMainWindow();
-			SendMessage(main, WM_UPDATE_EXISTS, 0, 0);
+			PostMessage(main, WM_UPDATE_EXISTS, 0, 0);
 		}
 	}
 	catch(...)
@@ -658,8 +658,8 @@ void CheckUpdateInBackground()
 	time_t last = GetPrgRes()->GetLastUpdate();
 	time_t now  = time(0);
 
-	// testing only once a day (86400 = 60*60*24)
-	if( GetPrgRes()->GetCheckUpdateStartup() && last+86400 < now )
+	// testing only once a three days (259200 = 60*60*24 * 3)
+	if( GetPrgRes()->GetCheckUpdateStartup() && last+259200 < now )
 	{
 		// this setting can be added also when a user selects manually the test for an update
 		GetPrgRes()->SetLastUpdate(now);