My AVR300 was hooked up an running fine for a few weeks. I have mains and surround speakers and a center, no sub. When I went to listen to 5.1 cable program or DVD I do not get sound out of the Center speaker and the sound to the mains and SS speakers is low. In stereo I do hear the dialogue that I would normally hear from the center speaker. I have replaced the center speaker wire and swapped the center with the main and verified all of the speakers are ok. When I run the tone test from the Setup Menu no sound from the Center. The Main Menu 2 has the Stereo Direct set to off. I have powered off the AVR300 for 20 minutes, unplugged the AVR300 for 20 minutes, still no 5.1 SS. I am using a SPDIF cable from the cable box and a coax digital cable from the DVD player. It all worked for a few weeks then stopped. I have emailed the Audiophile group here in the States. In the meantime does anyone know of a reset function that will restore the AVR300 5.1 mode?