I don't have a problem playing online games on Vista, so I didn't post this to Gaming.
I have been able to play Everquest 1 very easily on my Vista computer. Last year was my third year playing, on a WinXP desktop with a 32 meg video card at first, then changed to a 128 meg video card both AGP8x, Everquest. My Vista machine has double the ram and a larger PCI-express video card with 256 Megs of video ram.
I can certainly handle denser character numbers on my Vista machine than I could on either the WinXP computers. (Both WinXP computers need new motherboards).
I have tried Second Life MMO, but my Vista Home Premium machine seems to be slower there.
So, what computer games, MMOs, do you play on Vista machines and how well do they play ?