Okay, my problem is: I have a desktop and a tv-screen with pc-support. They used to work fine together. Now I tried turning the desktop on. That worked. I turned the tv on, worked as well. But they don't connect. The channel that I always used says it has "No signal". Other Channels have the same. I have Windows XP, but I don't think that matters, as I think it is a hardware problem. What should I do?

Oh and before anyway says "Check cables, retard", I checked every cable, it's all connected like it's supposed to. I have a HDMI cable. I haven't moved nor the screen nor the computer.

EDIT: Fixed.