I got a Panasonic th-pwd5uz in the middle of march. upon installation on the wall, i turned it on and noticed some problems. with DVD through component input, the picture flickered on and off. black bands appeared and sometimes the picture blacked out entirely. when i switched to video mode, the picture jumped and then re-stablized whenever i changed channels on my digital cable box. in both of these modes, i also noticed a ghostly line that moved up the screen that was very distracting. the guy who installed it checked and assured me there were no problems with the way he set it up, wiring and all. so i figured it was defective. i called sears and they replaced it. now I am having the same problems. does anyone know what my cause this? is this the nature of plasma? i feel like getting my money back and buying a crt display. please help!