It won't shut down at all...I actually just had it happen. Had to hold the button to shut it down. I'm starting to think that it may be xfire. I'm going to stop using it until Tuesday, and if I don't have it happen, then I'll get rid of it.
If you have any other ideas, let me know and I will try them out. I love Vista so far and would hate for this little thing to ruin it.
System Specs:
Intel Core 2 Duo 5750 2.0Ghz
3 Gb of Ram
Integrated gfx