do you by any chance have a 32-bit OS?
Mine is 64-bit , I can't run the 32-bit it keep saying that I don't have opengl 2.0 but 64-bit is running at low fps and keep crashing ,, Later that day I can run the 32bit just fine
Try turning off some graphics settings in 64-bit, or just tick the 'Pixelate' box
