I've recently upgraded to a new Time Warner HD digital cable box and am having the following problem: With the audio input set to "Auto," I receive sound for all digital television channels. For all analog channels, however, I receive no sound. I have to press the "Analog" button to get sound...using the analog cables. It seems that the receiver isn't automatically switching over. I haven't been able to determine if my receiver coincidentally lost that functionality over the same time I put in the new box, or whether it thinks that the analog channels are sending a digital audio signal. I'm using the Digital Coax cable from the cable box to the Denon. Anyone else had this problem...or have any suggestions? Thanks. PS I'm considering trying a Coax to Optical converter just to bypass the Denon coax input to see if that may be the problem.