This is a is a new official WHQL driver for GeForce 6, 7, 8, 9, 100, and 200-series desktop GPUs and ION GPUs.

New in Release 190.38

• Adds support for OpenGL 3.1
• Adds support for CUDA 2.3 for improved performance in GPU Computing applications. See CUDA Zone for more details.
• Adds a new user-controlled power management setting for GeForce 9-series and later graphics cards. This option allows users to set a performance level for each DirectX or OpenGL application.
• Includes several new control panel features and numerous bug fixes. More information can be found in the release documentation.
• Supports Microsofts new DirectX Compute API on Windows 7.
• Supports single GPU and NVIDIA SLI technology* on DirectX 9, DirectX 10, and OpenGL including 3-way SLI, Quad SLI, and SLI support on SLI-certified Intel X58-based motherboards.
• Installs PhysX System Software version 9.09.0428.
• Supports NVIDIA PhysX acceleration on a dedicated GeForce graphics card. Use one card for graphics and dedicate a different card for PhysX processing for game-changing physical effects. Learn more here.
• Supports GeForce Plus Power Pack #3. Download these FREE PhysX and CUDA applications now!
• Supports GPU overclocking and temperature monitoring by installing NVIDIA System Tools software.

We have a discussion thread open on this driver right here.

Supported products:

GeForce 200 series:
GTX 295, GTX 285, GTX 260, GTX 275, GTS 250, GTX 280

GeForce 100 series:
GT 130, GT 140, GT 120

GeForce 9 series:
9300 GE, 9800 GX2, 9300 GS, 9800 GT, 9400, 9300, 9600 GSO, 9600 GS, 9200, 9500 GS, 9400 GT, 9500 GT, 9600 GT, 9800 GTX/GTX+

GeForce 8 series:
8400 GS, 8800 Ultra, 8200, 8800 GTX, 8100 / nForce 720a, 8300 GS, 8600 GT, 8400, 8300, 8800 GS, 8400 SE, 8800 GTS 512, 8800 GTS, 8600 GTS, 8800 GT, 8500 GT, 8600 GS

GeForce 7 series:
7800 GTX, 7100 / NVIDIA nForce 620i, 7900 GS, 7350 LE, 7100 / NVIDIA nForce 630i, 7300 SE / 7200 GS, 7950 GX2, 7650 GS, 7050 / NVIDIA nForce 630i, 7300 LE, 7900 GTX, 7600 GS, 7950 GT, 7100 GS, 7800 GS, 7300 GT, 7600 GT, 7600 LE, 7900 GT/GTO, 7050 / NVIDIA nForce 610i, 7025 / NVIDIA nForce 630a, 7800 SLI, 7300 GS, 7050 PV / NVIDIA nForce 630a, 7150 / NVIDIA nForce 630i, 7550 LE, 7500 LE

GeForce 6 series:
6800 GT, 6600, 6800 Ultra, 6200 A-LE, 6200SE TurboCache, 6200 LE, 6800, 6700 XL, 6800 XE, 6800 XT, 6150, 6150SE nForce 430, 6600 LE, 6600 GT, 6100, 6800 LE, 6610 XL, 6500, 6150LE / Quadro NVS 210S, 6600 VE, 6250, 6150 LE, 6800 GS/XT, 6100 nForce 420, 6800 GS, 6100 nForce 405, 6200, 6200 TurboCache, 6100 nForce 400

ION series:
ION, ION LE

Have you read our NVIDIA GeForce 3D Vision article ?