[Chuffer]

I have been having problems with a driver crashing and my PC shutting down to prevent damage. This only happen when I am torrenting, and the D/L speeds go through the roof. But lately it has started to happen when I am seeding and U/L at a pretty good clip as well. So my question is, how can I fix the problem. Can I upgrade the driver, or replace or what? I have a Dell PC with windows XP. and I use bit torrent.