The NVIDIA Website and GeForce.com now offer new version 266.58 reference drivers for GeForce graphics cards. The new drivers offer performance improvements for GeForce 400 and 500 GPUs for several games, add SLI profiles for several games, install updated HD Audio and PhysX drivers, and more. There are new drivers for Windows Vista, Windows 7, Windows XP, Windows Vista 64-bit, Windows 7 64-bit, and Windows XP 64-bit. Thanks Wookiestick.