I have a 52 rear projection HD Toshiba TV that is about 6-7 years old. The covergence has recently gone out but I'm milking that one because it's only at the very edges. Today I can hear the cable coming thru but I have no picture. When I play a DVD there is a black "dialogue" looking box that comes up and won't go away. What is up and how do I fix this?
It sounds like you have the closed-captioning set to "text" mode. When set this way, if captioning is present the set clears the area where the text goes. You don't see the box on channels or programs where captioning isn't being used. On most TV remotes a single button controls captions, so it's easy to get into text mode without knowing it.
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