I have the standard TWC (General Instruments) STB box. I have a Digital cable running from Digital Audio Out (SPDIF) on the STB into the Coax 2 (In) on my Onkyo receiver. So I have now eliminated all audio connections bewteen the box and the receiever except for the Digital cable. The problem is I can't get the receiver to recognize DD 5.1, 2.0, etc. or any other Dolby Digital format on anything, channels >100 PPV, HBO, etc. The receiver DOES display the PCM digital light on the display recognizing that sound is coming in from the Coax 2 Digital Input. Receiver is set to receive DIGITAL from Coax 2. Sound does come through the stereo. However, I CAN't select any DD formats and the Dolby Digital light is NOT on. The ONLY formats I can select are Stereo, DPL, 5 ch. Stereo, and all the other analog DSPs that you get with normal TV. It is NOT recognizing a Dolby Digital source. Possible problems... A. A SETUP issue with the box. Although I see no way to enable DIGITAL AUDIO OUT on the menus. ONLY STB audio menu options are Stereo, Matrix Stereo, and TV. B. I'm completely insane. I've checked the wiring 10 times and it is correct. Hell, there is only one wire. So am I correct in saying that TWC is sending a Dolby Digital signal that my receiver should recognize and display? Or am I completely off base here with what my receiver is doing? PLease help me out if you can. I've gone almost a week like this and I'm completely frustrated with it. Thanks guys.