Go to the run line. Start - Programs - accessories - system tools, or just hold down the windows key and press the letter "r".

Then at the run line type "outlook /safe" if that don't work you may have to navigate to the actually outlook.exe file.

This will load Outlook in safe mode with any add-ins and what not, see how that works.

Outlook can be a tricky program let me know how you make out.