Suddenly for no good reason my Outlook 2003 (running on Vista) keeps restarting itself.
When a problem like this suddenly starts happening you just know it is probably caused by some other software that you’ve recently installed or a Microsoft update.
If you have installed some new software, uninstall it if you can and see if that doesn’t fix it.
In my case: I’m not 100% sure what was the cause. I haven’t installed any new software lately so I did another Microsoft update (there were 4 critical patches) and the problem went away as quickly as it appeared.
I’m still running Outlook 2003. I can’t bear to take the time to learn Microsoft 2007 and Microsoft 2010 is around the corner.