A black square in the middle of a picture usually indicates that the "closed caption" (indicated on remote as "CC") is switched on, this being a text receiving facility which will display a black square etc on the screen if no text is available, however if you know for certain that this does not apply have you tried uncoupling your satellite connection whilst you are viewing the black square, does the screen revert to a normal background? albeit that there will not be a picture to see.

Reply