If anyone has ever played a NiGHTS game (if you haven't, heres the link http://www.youtube.com/watch?v=uW8Ulku0u2k) what I do is instead of just trying to fly, I look for those yellow rings. When I see them (if you are expecting to see something you usually do) I know I can fly through them, and voila, im flying! This has worked for me flawlessly.