There is a problem with the pt880 ultra and Gforce cards. The basic driver
with vista kind of works...well it is stable but slow. The 97.46 driver also
has problems.
Every driver after that have masive video corruption and there are alot of
us with the identical problem and different types of cards and mobo's.
With or without the VIA 4 in 1 doesn't affect the issue.

e6600
2gb ram 667
7800gs
asrock 4CoreDual-VSTA
VIA pt880 ultra

I ran a memory tester for 12 hours without 1 error.
I did a CPU test for 12 hours with no errors. Temps at 19C

When Aero gets disabled in Vista the screen gets corrupt with horizontal
multicolored lines and black lines and bars(looks like over heat, but driver
dependent). Also all the application windows gets lots of artifacts and stop
refreshing, so I can paint with windows effects and I get very poor
performance. In fact I have installed every driver and each new one is
slower.

This only happens when Aero is disabled. Like during Windows startup,
shutdown, opening Windows Taskmanager, using any software that disables
Aero...



There are threads going on about this on Nvidias forums and VIA please read
up on it to get the details.

Link: http://forums.nvidia.com/index.php?showtopic=30678
Link:
http://forums.viaarena.com/messagevi...&enterthread=y

Here are the links for how it looks like.

Image: http://forums.nvidia.com/index...tach&type=post&id=3971
Video: http://www.youtube.com/watch?v=m2jihwNSU5I