I recently had problems with my Outlook 2007 on my Windows XP Pro system at work. Basically, the program wouldn't start up properly.  It would start and then encounter an error and try to restart itself (unless I unchecked the box to tell it not to). It would then try to start itself in "Safe Mode" (does that imply that the normal mode is unsafe?), but that would also fail. I tried uninstalling Outlook and re-installing it, but that made no difference. I tried uninstalling and reinstalling the entire Office 2007 suite, but again, that made no difference. In the end, I found a website that described the same symptoms and proposed a solution. It was the User Profile that was corrupted - not the program itself. By creating a new profile, I was able to get Outlook running again, ...