The drivers all come from nvidia, you don't need to install a specific brand driver. Download latest driver from Nvidia, install with 8600GT. Replace card with 8800GT. It should work fine. The drivers are released for the 8,9 series of cards, not just individual ones.
__________________ Intel E8400 Biostar Tpower I45 Diamond HD4870 512mb G-Skill DDR2-1000 4GB Creative Xtreme Audio PC P&C 750W Quad Silencer Antec 900 Logitech G-15, G-5 WC Loop: Swiftech Apogee GTZ Danger Den CPX-Pro, Maze 4 GPU Black Ice GT Stealth 240 Rad |