Outlook 2000 / 2002

Hello,
I have this odd problem I have never seen before. I went away on a trip and everything was fine when I left, however my video card on my PC at home (Where my email is) went out. When I replaced it everything seamed ok however when I run outlook anytime I group by a column it extends the one grouped by 84.20 and I cannot change it. When I did make an attempt it keeps things the same. Does anyone know how on earth I can fix this? I have attached a screenshot (Note if grouping by From you can change it but the gap is still there).

http://guilddivinity.net/Image2.gif

I tested this PST file on another PC and it works fine no gap but on mine it has it. Even formatted and reloaded windows and still no go.