I reinstalled it because I want it to move it to a different drive and want to download a fresh copy. It does fine until I choose the plane and airport once start loading it goes from 200 fps to 1 or 2 fps. Something is broken in the game. I think the game is not picking up the GPU and the CPU is bottlenecking. I tried XP11 and it is running at 60 fps. I will try to reinstall one more time .