In fairnes to Vista (grudgingly) I have seen quite a few problems with Toshiba Laptops sold by places like Best Buy, etc. that had FAR insufficient resources to run Vista. The machines barely booted. In one case, there was 512 Megs of RAM. I happen to like the Toshiba laptops, and we have a couple..it was not the computer, it was not the OS..it was the retailer's Special Great Deal.
In all cases, the computers were returned, and the people demanded XP or a refund. They got the refund because the "McDonald's" employees could not possibly have downgraded them, even if MS' license agreementss allowed it.
There’s a special place in Dante’s Inferno for Best Buy computer sales personnel. Eigth ditch, third bolgia. Best Buy is one of those needs must / need it right this second places. Otherwise, I avoid it like the plague.
Probably with shared graphics leaving only 400-something left for the OS.