Video Card Crashing

[sc2071]

Just got a new MSI 6600GT AGP Card, but I get a crash almost daily while playing games, specially WoW. I don't know what to do. I've turned off AGP Fast Write, got the latest MoBo BIOS and drivers for both the card and the chipset. What's next? Do I need a better PSU? The guide below makes me think not, but I don't know for sure.

Anandtech Guide

Here are my specs:
AMD Athlon 64 3500+
MSI K8T Neo2 Mobo (VIA K8T800)
MSI 6600GT AGP 128MB
2x 512MB Corsair DDR400
NEC DVD-RW
Generic 16x DVD-ROM
Samsung 160GB IDE Hard Drive
M-Audio Audiophile 2496
USB (Keyboard, Mouse, Microphone, Printer, Netgear Wireless Adapter)
Windows 2000 SP4

...and an Antec 400W PSU.

Thanks for any and all advice!

 

[akugami]

Doesn't look like your system would tax your PSU to such a degree that it woulc cause stability issues. However, you could always have a flakey PSU...it's always possible. If you can borrow a good PSU to test this out with you could try to narrow it down a bit.

Try downloading and installing Driver Cleaner, uninstalling all your video card drivers, restart in safe mode and then run Driver Cleaner to clean out any remnants of old video card drivers. Restart into Windows and then install the latest video card drivers. If you've also got a spare HD you can try to do a fresh install of Windows along with the drivers to see if that helps. Could always be a corrupt Windows installation.