I've taken and uploaded some pics.
I'll just start chronologically: About two weeks ago I started noticing a blink of dicoleration troughout my computer screen. This used to happen momentarally and then go away. At first I just ignored it. Then later it started lasting longer and longer until the point when my application crashed. So i thought I'll just reinstall the gfx drivers when I have time. Now what happens whenever I launch an app that uses a 3d accelerator for after about a min, my whole computer crashes. And after I restart it, it's completely SCREWED up (As seen in pics). At that point it wouldn't even LOAD up windows after have the vista loading screen it just goes blank. Last night I force shut DOWNED it so many times I corrupted my hard drive forcing me to do a system restore using the backup drive. Now since this is kinda a bit hard to describe so I didn't have MUCH luck searching for it online. I THINK It might be a bad gfx card, or an overloaded power supply. Now when I got the PC a couple years back I upgraded the GFX card to nVidia 8600(Installed by me) and along with it upgraded the 400 wats power supply to 600 (Installed by pro). So does any one know what's going and/or how to solve it?









That typically looks like a video RAM problem. It could also be the video cooler.
It should be free of all dirt and debris and turn very freely when you tweak it with your finger.
It it does not spin freely, then it will probably need to be replaced.

If I had that video card here, I'd clean the video ram with Denatured Alcohol and a toothbrush.
Then clean the edge connector and make sure the board is completely DRY before reinstalling it into the PC.

I've saved many a video card by just cleaning them. Ram sticks too.

Good Luck,
The Shadow