Help: Westinghouse LVM-42W2 (42" LCD) problem with Comcast

[Somerset]

I just got a new Westinghouse 42" LCD (1080p). When it is hooked up with the Comcast DVR box through either DVI or component, on certain HD channels (NBC, ESPN, INHD, INHD2), there is a white vertical line at the very left edge. It does not happen on other HD channels (CBS, ABC, TNT, Discovery, etc). :(

Has anybody heard of this problem? Is it the DVR box or the display? Any thoughts?

Thanks

[raff]

Hard to say, but if it's happening on some channels and not others, I'd say cable box.