Yea definitely. I've been using my box on the same tv for a year and havent once messed with the cables until it stopped recieving a signal today. Also, I do have it sent on HDTV and not SD.

Component. As I mentioned earlier i've tried two different tvs, two different sets of component cables, and tried using different ports on tv. At this point the only thing I can think to do is call microsoft.

Well I thought that too, but I just picked up brand new ones from gamestop and they didnt change anything. What else could possibly cause this?

Well I tried every suggestion except using different cables. I think Im gonna go buy some now and see if they work, if not ill return them. Holding A+Y didnt work, and I tried the tv in my bedroom which is SD but it should of worked regardless.

Thanks for the suggestions. Ill see what I can do.

I randomly decided to watch some netflix on my Xbox earlier and when I turned it on and switched from TV over to Component 1, which the cables are hooked up to, it said for the first time ever that there was no singal, which is what all the inputs say because nothing is plugged into them, but this has never happened before with the input that the box is hooked up to. Its acting like there isnt a device hooked up. I tried switching the cables from component 1 to 2, but made no difference. It must be a TV setting issue? I double checked to make sure that the cables were set to HDTV. Anyone have any idea what I can do to fix this?