Hey one of our users here at work keeps getting this problem when he tries to add new appointments in his calender. He has XP Pro with Service Pack 3 and updated as far as I can see. This is the error that pops up in the event viewer.
Faulting application outlook.exe, version 11.0.8217.0, stamp 480f95d9, faulting module outllib.dll, version 11.0.8217.0, stamp 480f94f8, debug? 0, fault address 0x0025c19f.
Faulting application outlook.exe, version 11.0.8217.0, stamp 480f95d9, faulting module outllib.dll, version 11.0.8217.0, stamp 480f94f8, debug? 0, fault address 0x0025c19f.