After hours of driver hunting, i found the perfect mix, and so far it's working well with both the voodoo 5 and the FX5200 (somehow, i perfer the FX5200, but that's probably because i can hit 30fps solid with NSFU at highest detail.. curses!). The VIA 4-in-1's that came with my mobo (and the agp driver, most important here), the lastest ATI Catalyst IGPGART (i have a IGP320 northbridge), and the lastest Amigamerlins or Forcewares. Not to forget, Creative's drivers for the sound card and every single minor patch and hardware update on Windows Update (no sp2! ) Personally, i think the IGPGART and the VIA drivers didn't do much but the weird AMD patch on WU might have been the biggest factor. Strange, but it's working now. I played THPS2 for 30 minutes (15 2-minute runs) and some normal driving around in NFS(U1,U2,HP2,PU). NFS 4 LIFE! Thanks @Voodoo5, for recommending to see if it was this system and not the card. I would have cried hard tears if it was the voodoo, i've owned it since it was new.