Ok I need someone's opinion I have RMAd a radeon 1950 pro agp once and now have the same problem I did with the RMA'd card as with the replacement card. This is definitely the v-ram right?

I guess I should mention I use
an MSI K8M800 board with basic peripherals
OCZ stealth x stream 600W psu with 18A on each of 4 12 V rails
My ambient case temperature is 30 deg. C with full load goes up to 38 deg.C
I use a 3200+ AMD athlon processor
2GB DDR 400 OCZ diablo low latency memory.
I also use a thermaltake case fan right next to the agp slot which pushes the heat generated by the video card outside the back of the case.

Good to mention, as power supply, temps, airflow would have been my first questions.

I had a new 6600GT do very similar things on any system I put it in. I RMA'd it. Seems it was the mem and only took at most a couple minutes of gaming to heat up enough for that to happen. Without testing it in another system, I'd say it's probably a bad card. Have you tried multiple drivers?

Yep the original drivers that came with it, the latest ones that amd put out ....different chipset drivers and a driver cleaner inbetween to make sure nothing was borked in the process.