NVIDIA rolled out a new beta graphics card driver today. This driver supports all GeForce 6,7, 8 and 9-series GPUs and features Quad SLI support but for Windows Vista only. Here's the changelog of the Windows Vista driver:
Supports GeForce 6, 7, 8, and 9 series GPUs including these newly released
GeForce 9800 GX2
GeForce 9600 GT
GeForce 8100/NVIDIA nForce 720a
NVIDIA nForce 730a
Supports single GPU and NVIDIA SLI™ technology on DirectX 9, DirectX 10,
and OpenGL, including Quad SLI technology with GeForce 9800 GX2.
Adds support for NVIDIA GeForce 3D Stereo Technology for GeForce 6, 7, 8,
or 9 Series GPUs, including SLI technology.
Adds new PureVideo HD features for GeForce 9800 GX2 and 9600 GT:
Dynamic Contrast Enhancement
Dynamic Blue, Green & Skin Tone Enhancements
Dual-Stream Decode Acceleration*
Microsoft Vista Aero display mode compatibility for Blu-ray & HD DVD
Added the following pages to the NVIDIA Control Panel:
Manage Custom Resolutions
Adjust Television Color Settings
Adjust Screen Size and Position
Move CRT Position
Improved performance on many DirectX 9, DirectX 10, and OpenGL
Numerous game and application compatibility fixes. Please read the release
notes for more information on product support, features, driver fixes and
known compatibility issues.
You can download the driver over here, it's available for Windows XP and Vista.