As people here must know, I now have an HD widescreen TV set, a Samsung. It works fine, and my DVD's generally look great on it, but there is one problem that I don't understand. On some DVD's I get faint lines on the picture - not lines due to static or anything like that, but faint lines that at times are not discernible at all, and at times are. It's not my connections; I've checked that, and those are fine. But what could be causing this, and can I get rid of it? Has it happene to any of you?