Re: 9800 GTX display freaking and locking up machine
This actually is a hardware flaw in the 9800 GTX, as it was released with a factory overclock. Any application that does not include framerate throttling will cause runaway framerate which will in turn cause the card to overheat and lock up. This happens regardless what the OS or application is.
Unfortunately the only cure is to throttle the bandwidth manually, via whatever applicable configuration file or utility you can find.