Outlook 2003 not responding! Please read!

Hi!
I have this strange problem. It happened two month ago, and now I faced it on another PC. I received a message, when I highlight this message in the tree view, outlook 2003 gets in "Not Responding" mode. It won't work until I end its task and start it over again.

I didn't solve it back then, I just avoided highlighting that message (By the way, I never read it because as I explained, it won't even open).
But now my new situation is unbearable, when I click on "Inbox", I get the same freeze again.

I even tried creating a new outlook profile, but I got the same problem when using the personal folder of the old account.

I would appreciate any help please..
:cry