Computer problem

[Death stalker]

I was redoing my entertainment center, which my computer is a part of, and when it came time to hook my computer up, I turned it on and my tv stayed blank. It was working before I rearranged my stuff. The RGB plug goes throught the motherboard. I've checked the connection from the tv to the motherboard time and time again. Any ideas on what's wrong?

 

[Glliw]

Make sure you have the TV set to the right input. There's usually a few different options for each type of connection to choose from. Make sure the computer is powering up completely.