Hello, I've used Rivatuner in the past without problems. However I just recently tweaked and re-built my system a bit (nothing major), however I installed Windows 7 64-bit. I'm running two 512mb 8800GTs in SLI with 188.8.131.5285 drivers. I'm trying to get to the GPU overclock functions but Driver Settings displays "No supported drivers detected for this display adapter." When I installed Rivatuner, Windows gave a generic error about trying to install unsigned drivers. I'm not sure if this has anything to do with my problem. So I'm not sure why Rivatuner isn't detecting my video drivers (which seem to be working properly). Is this a problem with Windows 7 or 64 bit?