Driver Problem?

http://img223.imageshack.us/img223/3634/dsc01405ug1.jpg

Hello, I'm hoping one of the intelligent minds that inhabit these forums might know a solution for a driver problem that is plaguing me. I get seemingly random lock-ups. Sometimes there are small white bars on the screen when the computer locks-up(see photo)

q6600 stock
evga 750i
9600 gt sli
vista 64 bit sp1
ocz 4gb 800mhz
cooler master 1000w real power

The computer doesn't freeze in bios, safe-mode or when I have no display drivers loaded. I have tried driver versions 175.16 and 169.32...no luck.

My windows and bios is completely up to date.

Anyone encountered these problems before?

I am all out of ideas and am losing hope. I'm about to swear off nvidia and become an ati fanboy for good.

Thanks in advance for any help, suggestions or jokes at my expense.

 

I also have a 9600GT and it works great, I've had no issues (32bit Win XP Pro SP2). If you've tried different drivers then I'd say it's most likely the card itself. There's a chance the card is overheating so download something that will report the temps from the card like nTune (from nVidia available here at Major Geeks) or HWMonitor (also available here at Major Geeks). Both are free and will display your temps. Start monitoring the temps right when you power on, and check them periodically to see where they're at. Post the results here and we'll go from there. There's also a video memory test you can run and a general stability test, maybe those will help. However, I'm not sure if they all work with Vista x64 (I know nTune does).
Links:
nTune http://www.majorgeeks.com/NVIDIA_nTune_d5328.html
HWMonitor http://www.majorgeeks.com/HWMonitor_d5842.html
GPUZ (general video card info tool with Vista x64 support) http://www.majorgeeks.com/download5796.html
Video Card Stability Test http://www.majorgeeks.com/Video_Card_Stability_Test_d5404.html
Video Memory Stress Test http://www.majorgeeks.com/download5896.html
RTHDRIBL (high end video benchmark and burn-in tool; may not be Vista x64 compatible) http://www.daionet.gr.jp/~masa/rthdribl/#System
Start one of the temp monitoring tools first (one of the first 3 links), then launch the stress test or stability test or RTHDRIBL or another program that will max out your video card. There's tons of 'em in the Benchmark section here at Major Geeks http://majorgeeks.com/downloads4.html The 3dMark titles are really popular and will pretty much give your video card a good workout.

Good luck! I hope this helps!

:major
[dlb]

EDIT - I was just thinking.... It might be the system memory too, but it's not as likely, but here's a good test to run to test it. You'll create a bootable floppy disk or an ISO image file that you'd burn to create a bootable CD http://www.majorgeeks.com/Microsoft_Windows_Memory_Diagnostic_d3955.html