hakaveli, what your projector is doing is trying to select signal and in the process you are missing the opportunity to select "yes" on the 360's screen as to whether it is displayed correctly. If "yes" or ok is not selected it reverts back to original setting. I don't now if "yes" or "ok" as I have never seen the screen either. Do a blind set when the screen is blank by pushing up on d-pad and then "A" (I think) on controller. that should set it to whatever resolution you selected. The "yes" is being missed as the projector is trying to regain signal. For what its worth, I have my X1, basically same as 4800, on 1080i and it looks a little better to me than when @480 or 720.