Originally Posted by sygnus21
This appears to be an equal opportunist problem with regards to video card manufacturers, but not to OS's as it only seems to strike Vista.
Yes, it's Vista specific. Vista has a time-out for graphics operations. IIRC it's two seconds (but can be configured with a registry hack to be longer if necccesary). If any operation takes longer than that, Vista assumes that the video card/driver hung and resets it. The idea is to keep the system running, whereas on XP in the same situation you'd just find that your system froze.