My recorder worked great until Thursday when I had Insight(my cable supplier) Digital 4.0 installed. In doing this they put in a Motorola Dolby Digital Box(DVR or Digital box. While I could still watch VHS tape or DVD disks, I can't record anything. It comes up NO SIGNAL. I checked my operating instructions and I can't find out how to solve the problem. Can you held me? Thank You, Doran