No offence intended, but no other game has any issues. This is the only game I get crashes in (and to be fair it's only doing it on that particular quest afaik).
It's not the sound drivers. Or the graphics card drivers. Or the fact I have a fraction of an overclock to 4GHz. Next it'll be dust in the case (and no there isn't any....). Or maybe I should disable my anti-virus? That's also never going to happen. No, this is an issue with the game, pure and simple.
did you turn off ambient occlusions in the nvidia control panel ?
i have seen alot of 500 series cards that seem to have this issue