lately my pc has been crashing due to what i think is my graphics card overheating. My graphics cards is the 8800GT. My monitor goes graizy with lots of colored lines but sound still works to an extent. I think it is my graphics card because when it freezes the card becomes VERY hot. I was wondering if there is any known issues about this card type overheating as i have only owned my pc for a year and if there is any ways to fix the cooling in the card without having to buy a new Graphics card. I am using Riva Tuner to increase the speed of my fan and it seems to have helped but to play games i must increase the increase % to 80% and i'm a little worried since im new the overclocking and im scared i may be damaging my graphics card.