I need your help with my Comcast Motorola box. Remote is gray with red OK button. Buttons in box don't work. the only one that works is power on and off. only certain buttons in Remote work (like ch+ and Ch- , the numbers and volume on TV). Buttons for TV guide, info, last, etc not working either on remote or box. Any advise? I tried resetting remote, unplug from power the box so it would reset but that does not work either. Please Help!! Thanks so much