Agreed. Thats a memory issue with faulty drivers, and IMO vista does better with memory than anything else out there. EX:

Before my recent upgrade i had a 256mb 8600gt. not alot of vram, and i had 2gb of system memory, whatever wasnt being used of that 2gb vista would give to the component that needed it most, wether it was my soundcard or my vid card, so if i was doing graphic intensive stuff, my vid card would register as having a gb of ram, but if i was in FL studio or reason it would register my soundcards onboard as having more.

But back to the problem, i smell bad drivers, and they stink. And for those who don't know, i DO NOT RECCOMEND going back to xp for security reasons, after xp sp3 theyre stopiing all xp related work. XP will be unpurchasable at the beginning of june.