What video card? If NVidia, use the FFXI specific NVidia drivers. If it's a laptop, pester Fodder, I think he modded the .ini files to work for the Mobile platforms. Past that, I've ran FFXI on every version of Vista since beta 1 and it and EQ2 have worked beautifully. I get no less than 28 FPS in Whitegate and usually 30 FPS everywhere else--even during huge campaign battles in Jugner, etc. It's not Vista, it's usually drivers or such. EDIT: another bottle neck, depending on your NIC, can be the throttling. If you haven't already, I recommend upgrading to Vista SP1--there's a huge performance gain IMO.