Forum:Severe graphics glitches throughout game

ACK! For some reason, ME1 has started to display insanely bad graphics - some areas aren't even playable. Sometimes I just see "jumping graphic elements", sometimes pixelated black dots, sometimes just a haze of black and gray. I am half way through the game, and I have no idea what caused it.

I have reset the video/audio settings to DEFAULT. I deleted the shader caches on my PC. I have the latest nvidia drivers (and other games, i.e., Batman AC, play just fine). I have not edited the .ini files.

Can anyone point me in a direction to fix this? I'd hate to have to re-install and start from the beginning.

Thanks!