In the last 3 to 4 days Outlook has been crashing (not responding). Its so bad that you cannot shut it down by clicking on the X. I have to force it to shutdown with Task Manager. I first I thought it may be my AVG Internet Security so I uninstalled it and installed Avast Pro. Same issue. So I did an Office repair--no luck. Then I uninstalled Office, then reinstalled it--same problem. This is not only happening on my PC but also on several of my customers systems--only common factor is that its Outlook 2003. Some are on Windows XP other Win7. Those on XP and still using Outlook Express--no problems.