Toshiba 46HM95 46" HDTV "rid black box appears tv" Questions

...rid of the black box across the picture? Check in main menu (set and box if using one) under closed captions--one of the settings is TEXT--black box will appear in middle of screen and certain ...

black box keeps apearing on the screen. How do I get rid of this?? I think I have pushed every button possible to try and get it to go away. my tv was working fine. somebody hit the menu button on the

...black box appears again. Perhaps on a related issue, for a few months now I have noticed that the captioning will turn on, and gibberish will begin to appear at the bottom of the screen. I've been ...