I've just read thru a bunch of 8800 gt threads and came up blank. Other than suggesting that you make sure your bios and chipset
drivers are up to date, the only other suggestion is to try an older
driver. In one thread they suggest the 190.62 which is the default driver windows will load. Yet the user above above in that thread, Lee has the same card using the driver you just tried. Hopefully you'll get some other suggestions. Sorry Fabe