I just bought a JVC tv "not HD" that has component input. I have an ati 9550 video card with the dvi to component adapter. I can plug the component cablebox from the wall in the tv and it will work but it wont work with the component output from my computer. But the computer did work one time with an HD tv. Is it because the new tv is not HD? Or do i need to change some setting. The screen stays a blank blue screen. Can anyone help?