Yeah, lol... So many stuff about mup.

And yes, I've tried al my PCI slots ;(
BUT... I have actually been updating all my drivers.
I also go an update for my AGP... And some other drivers. After this
update, a fwe things have disppeared from my device manager (not in a
bad way - evertything still works) which probably means there were some
conflicts going on anyway.
Thanks for your help, and now I know that updating my drivers will
help, I'm not gonna stop

Cheers, I'll tell you how it goes.