i think so - i always had more issues running 2k anyway - never really found out why - Belini seemed to have trouble with 2k with the dx10 cards. NVidia ones are particularly bad - especially in the rain. Dx9 cards are fine (Nvidia ones have the pink line bug).
Oh, maumau, do you run with the debug mode turned on on GPxPatch (on the first page)? I've had some terrible problems with that on Vista and 7... if it's on, try turning it off and running GP3
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Team Japan Owner - GPGNC