I have exactly the same problem- I have Windows XP and Office 2003. My problem started in April this year when I bought Grimefighter. I have tried re-installing Avast Anti virus -as other forums suggested for “most Outlook problems” This didn’t change anything. I have also removed Grimefighter but this did not help either.
I gave up back then, but now I read that I could have undone the changes Grimefighter made - only within 7 days ! Any chance this might still work?

All help gratefully received,
Wesleyandcouk