I try it at Win 7 BETA and seems it works...

New in Release 185:

* Adds support for the new GeForce GTX 275 GPU.

* Adds support for Ambient Occlusion – the newest NVIDIA Control Panel feature to offer enhanced 3D gaming realism exclusively to GeForce GPUs.

* Adds support for CUDA 2.2 for improved performance in GPU Computing applications. See www.nvidia.com/cuda for more details.

* Accelerates performance in several 3D applications. The following are examples of improvements measured with Release 185 drivers vs. Release 182 drivers (results will vary depending on your GPU, system configuration, and game settings):

* Up to 11% performance increase in Call of Duty: World at War

* Up to 5% performance increase Company of Heroes: Opposing Fronts

* Up to 22% performance increase Crysis: Warhead with antialiasing enabled

* Up to 11% performance increase in Fallout 3 with antialiasing enabled

* Up to 14% performance increase in Far Cry 2

* Up to 45% performance increase in Mirror’s Edge with antialiasing enabled

* Supports GeForce Plus Power Pack #3. Download these FREE PhysX and CUDA applications now!

* Numerous bug fixes. Refer to the release documentation notes.

Because 185.66 and 185.68 is still BETA while 182.50 is WHQL...