Thanks for everyones advice, I think I have the heat situation under control.
Still having a few software problems though. Wipeout locks after a couple of minutes and I just get a grey screen when I try Payback :-( .
Is there a site on the net with a Blizzard FAQ or something? In particular I wonder what setpatch I should use? I have also installed a BVision fix thingy that came with Warp3D 5.1, do I really need this?
Thanks :-)