WATCHING A PROGRAM AND WENT TO CHANGE THE CHANNEL. PICTURE FROZE. REBOOTED THE BOX BY PULLING THE PLUG. WAITED A HALF HOUR THEN PLUGGED POWER CORD IN. NO PICTURE BUT HAVE AUDIO. I CAN CHANGE CHANNEL AND HEAR DIFFERENT AUDIO BUT NO PICTURE. ANY HELP FOR THI S PROBLEM? DO I NEED A NEW PVR FIOS BOX? WE HAVE TWO PVR'S IN THE HOME AND THE OTHER ONE IS WORKING FINE. WE HAVE A THIRD BOX THAT IS A " SLAVE " TO THE OTHER 2. SORRY ABOUT USING THAT WORD BUT CAN'T THINK OF ANOTHER TERM FOR IT. TV WORKS BECAUSE I WATCHED A DVD ON IT JUST A FEW MINUTES AGO. JJM