I have installed Sunbird Portable and it displays correctly using Windows 2000, however, when starting the program on a Windows XP machine the calendar does not display. I have un-installed Sunbird Portable and re-installed but this does not solve the problem.
Any help would be appreciated.
a bit late but maybe you'll still read it
see this thread:
SBP consuming too much CPU
it's probably the same problem, you'll have to start it twice and the kill the process called portableSunbird