If you go to nvidia.com download page you will learn that the Geforce 8800 series needs a special driver. In fact, Nvidia has three different variations pf driver: one for Windows XP or Media Center edition, the second one is for Windows Server 2003 X64 Edition and the last one supports Windows XP Professional 64 bit edition.A driver for Windows Vista is still not available.
It seems that Nvidia silently moved from a Unified driver architecture to a completely disunified one.
NVIDIA GeForce 8800 strays from unified path
Posted on Tuesday, Dec 19 2006 @ 03:13 CET by Thomas De Maesschalck