nVidia Vista Driver Problem

Hi everyone,
I recently installed the beta 2 and everyone is working fine except one
thing. I have a eVGA GeForce 6800 GS PCI-e graphics card and during the
installation of the Vista x86 drivers from the nVidia website my screen shows
all these weird lines(like the graphics card crashed) and then the screen
goes black. I tried it multiple times with the automatic updates and the
drivers from Nvidia, but the result is the same. Any help would be
appreciated.

Thanks