Having just upgraded to a plasma screen, I've noticed a problem with my Pioneer DVD-737 and its component connection. In short, there's a 4in-wide, lighter-than-the-black-background stripe that runs up the right edge of the screen. It's only visible when the DVD player is set as the source and is present both when the player is playing a disc and when its just turned on but not playing. It isn't there when the screen is switched to another component source, nor is it there when there's no source selected at all. The stripe is there regardless of the component leads I use and regardless of whether the leads are connected directly from the player or switched through my amp. Ideas, anyone..?