Trying to get surround working on FiOS via their box - Motorola QIP 7216. Receiver is a Pioneer VSX-1020. I can't get the center channel on FiOS. Works fine when I use the disc so it doesn't seem to be a receiver setup issue. I've tried HDMI from the set top and just tried the optical link too. No joy. Anyone know if FiOS broadcasts all the correct info for this to work (just looking at the HD stations)?