I'm sorry, but I don't use Outlook, I use Outlook Express and I never experienced anything like you have experienced. I just gave you a link for the thread where other guys discussed about it, so you may wanna try to read about it in there, and if they already found some solution, you'll get hood help in there. I'm not sure, but I think VLK posted some link for some patch or something, so try there and see if that helps. Reading carefully all those posts and replies may help you a lot. Just calm down, and go through all those posts in that thread.
Cheers !