I've had my 7800gt for over a year now, but all of a sudden its doing something really weird. My core clock on the card is 445 which is what its supposed to be. But my memory clock says 2.14 Ghz, and I know its not running at that because all of my games run perfectly fine. But whenever I try and lower the clocks to 1.07 Ghz, which is what it was when I bought it, it never passes the test and defaults back to 2.14. I've tried both coolbits and rivia-tuner. I'm using 93.81 for drivers but it did same thing when I had the 93.71 drivers. Any help would be appreciated, because this is really weird.