I'm having a problem with my PC since installing Windows Vista (Ultimate
64-bit). It seems there are serious issues with media playback, so much so
that whenever I try to watch a video my system dies, whenever I try to run
the performance evaluator and the system gets to media playback evaluation,
it dies and whatever I try to burn video to DVD, the system dies.

Sometimes I get lucky and there's just a error message to let me know what
my display driver had a problem but the system has recovered, generally
though I have to reboot my PC as it hangs at a black screen or a screen of
garbled, static, images.

There have been no hardware changes to my PC, and all was running perfectly
under Windows XP Pro 64-bit.

I'm running an AMD Athlon X2 4200+ w/ an ASUS A8N32-SLI motherboard & 256MB
nVidia GeForce 7800 GTX (made by Gigabyte). I have tried all available
versions of Forceware drivers, currently running 100.65.

I have notified nVidia of my problem with no response and I'm wondering if
I'm alone with this problem.