When I turn on my XBox 360 (newer version) the green light in the middle of the circle comes on for about 5 seconds then turns red. There are NO red ring lights around the edge of the silver button, ONLY the red dot in the middle. I took the hard drive out and put it back in, that did nothing. The power supply has a green light. I also tried two other HDMI cables and still nothing. Does anyone know what the red dot without any red ring lights means?