It's just the 8500GT and yeah only after it was introduced to new drivers about 10 days ago. Thats why I went back to the ATI HD2400 as it works fine though slower than the Nvidia. And my guess now is it's something to do with the HP part of the computer, though I could be wrong? But, I can not get it to stop freezing up and that I sure hate a lot. Glad they are working for you.