A few days ago trying to play Quake 4 on Vista 64 caused a few problems, the game ran amazing, but afterwards it screwed my drivers.
So I was going to try it on virtual PC with XP 32 (86) installed as the guest OS (I needed to do it anyway for some old progs but I was too lazy until now).
Its going on my sig rig, how much of a performace hit is this going to give 10... 30... 50% ???
Note that I'm replacing the P4 with an E5200 when I have the cash, so it'll be a lot faster.