I bought this from flightsim.com, beliving it was as they said a "FSX certified aircraft". But Im getting the black prop disc, I have tried all there patches, over and over again to no joy. It worked for awhile but there was no sound. So I did a new install, with the same result, I dont have acceleration, and do have SP2. Flight replicas have returned my emails so far, but nothing I do helps. Anyone hear have a solution? I have a dell 2.83 core 2 quad, with XP pro, and a ATI 4870 GPU with the lastest driver. Thanks.