Sorry to hear about the issues that you are having with your card Acrobat, I hope it gets resolved soon.
You mentioned earlier in your thread about the 8800 ultra cards and non issues, I have not fully confirmed were my issue lies but so far things are pointing towards it being a graphics card issue.
I am planing tonight to swap my card out with another one a 7800GTX which has not had a single issue in the machine its coming out of, I am going to see if the games work with that card in, going to double check the memory to.
I had ran my system under vista 32, but had a repeating nvlddmkm issue so I went back to xp, but xp is proving to be worse by along way, or my graphics card has failed at the same.