I have a 360 Slim that I got for my children for Christmas. We let them open it on the 22nd, and they played that night and the next day. No one played on it the 24th. Now, on the 25th, we tried to turn it on and it came on for a few minutes, the screen "digitized" and now there is a red dot instead of green on the console. I unplugged everything, and turned it back on. There is a green light for about 30 seconds and then it goes red. Anything I can look at before sending it for repairs?