Quote Originally Posted by sweep View Post
I would personally get another hard drive, disconnect all other install a fresh copy of Vista with the latest drivers. Before installing take out any hardware which you dont need so just leave it with Sound, Graphics etc. Install it up and see if it runs stable, if it works then it shows it could be your current installation, also by disconnecting unecessary hardware you are able to isolate whether its something else causing it.

Also I would run CMD prompt in admin mode and type sfc /scannow it is supposed to check if Vista is corrupt (it has it's issues with false positives) but in your case it may be worth a try.