This is a WHQL-certified driver update only for GeForce GTX 480 and GeForce GTX 470.
Technology and API Support:
*Note: 3-way SLI technology and SLI multi-monitor support are only supported on Windows Vista and Windows 7.
GeForce 400 series:GTX 470, GTX 480
We have a discussion thread open on these drivers right here.
Have you read our GeForce GTX 470 and 480 review ?