Funky, as in laggy, graphics or what? I remember playing dungeon siege 1 and 2 on XP without any problems. You need to give us some more info, like computer specs. If you think you meet the requirements of the game then try updating your gfx card. Can't help you any more than that.
Mojito
------------------------------Cooler Master RC690, Gigabyte Ga-EP45-UD3P, e8400 3.6GHz cooled with a Xingmatek HDT-S1283 , 4Gb (2x2Gb) G.Skill Pi Series, Sapphire 4870 1Gb Vapor-X, OCZ 600W
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