Ah, sound like an issue with the receiver. Settings on the receiver? I have seen this before, I just don't recall how I resolved it. Ill get back to ya.
Okay. Are you using a sound card or onboard sound? Latest drivers? Windows/drivers set to optical out. Set the output to 16 bit? That's all I can think of that the moment, but its a place to start.
Sound card. Latest Drivers, 16 bit. The sound also plays with my Xbox 360's source selected, which is also hooked up with optical, encoding Dolby Digital.
Ah, sound like an issue with the receiver. Settings on the receiver? I have seen this before, I just don't recall how I resolved it. Ill get back to ya.