I have an EVGA gtx 460 that has started acting odd. Every once in awhile I would get a black screen that would require a hard reset. Then eventually the other day, it wouldn't boot at all. It would boot to the windows logo and then black screen. Replaced it with a spare card, booted up fine. Put the 460 back in, black screen. Booted in safe mode, boots fine. Uninstalled driver and reboot to full windows... boots fine with no driver installed. Reinstalled latest driver (was already on latest driver when this started) and rebooted. Black screen. Booted into safe mode and uninstalled driver again. Reboot to full windows, install old version of driver, reboot. Black screen. Reboot to safe mode, uninstall driver, reboot to full windows install reeeeeaaally old version of driver. Reboot. Black screen.... So... the only time the card works is when there is no nvidia driver installed... weird. Anybody got any ideas? I haven't tried testing it in a clean windows install yet, but that's my next step I guess.