The calculator could not be found
This message occur if Q++ cannot launch the calculator because it cannot find the corresponding executable.
•If you specified a non-default calculator, please verify that the path you set is correct (see Miscellaneous Preferences).
•If you did not specify a special path, make sure the default Windows calculator file (c:\windows\calc.exe or c:\winnt\calc.exe) is present on your PC.
You can reset the calculator path to the Windows default at any time.