I've been having this problem for some time now. It comes at random times, my X360 won't turn on at all. I'll hook it up correctly, the light on the power cable turns green when I hit the power button, but the console won't turn on. The lights on the controller flashes all four lights and will either sit there with all four lights on, or flash all four lights then turn off. Its really odd and irritating. I don't hardly play this thing anyways, and when I do its only for about 20 minutes.