No audio or picture! Help!?!?!?

So recently i was playing my xbox360, and i was just flipping through the dashboard and the screen went black, but i could still here sound, so i turned everything off, includeing my TV and tried again, and now im not getting sound or picture! Ive moved the 360 to some different TVs in the house and i get the same thing with all of them, and i dont have the 3 red lights, my console runs fine, it just dosent seem to out put picture or audio, i even borrowed my friends cable and tried that, still nothing. Suggestions or helpful ideas would be great!

gamecrazy were i live said they had three come in the same week when mine happend.

I had this happen to me. I do not use any cooling devices just the xbox360 as is. It fails to display a picture or play sound. Just before this happened I was playing call of duty 4 and the background faded with a red pigment into the pictures. Rebooting the xbox afterwards resulted in no red rings but no picture or sound on any output from TV/HDTV/HDMI All Failed. So just for you cooling fan types out there it is possibly not related since I do not use one and still managed to get this problem. I have a surge protector on it and I did not have a power flux during this time.

Just FYI