Trouble with component AV cable

Hi folks,

I recently bought a component AV cable for the wii/ps2/xbox 360. It works fine, but whenever any of the systems is turned on I see faint horizontal lines slowly moving up the screen. They are very faint and barely noticable most of the time, but when I do notice them it's REALLY annoying.

Does anyone know what causes this? If the problem is the cable itself I could go back and exchange it, but if it's something else I would of course rather not go through all that hassle and just fix the problem.

Thanks everyone =)

Thanks for the help =)

I recently bought a new computer monitor that I have my xbox hooked up to now, and the problem seems to have gone away. That's good info though about the Reciever/Amplifier and I'll definitely be considering that at some point in the future.

Thanks again