This driver set was released by eVGA, it supports most series GTX 200/400 and 500 cards. Currently there's no release notes available, however our forums indicate this is a proper and new WHQL set. Be sure to share your experiences in our forums, right here.
Download:
Forceware 266.77 Win Vista 7 WHQL 32-bit
Forceware 266.77 Win Vista 7 WHQL 64-bit