I got my Multi-Region Davs550 from Richer Sounds around 6 months ago and have had no problems what so ever with it until now Today i received my R1 Criterion DVD The Rock and found that i couldn't get any audio through the centre and rear surrounds no matter what track i tried DD5.1 or DTS absolutely no sound what so ever. I had my rear surround volume set to +2 and adjusted it back to the default level and still no luck. Unplugged all cables and leads and its still a no go. The strange thing is using the Test Tone on the Davs550 system menu all speakers work fine including the centre and rear surrounds. SO i have no centre speaker volume and no rear surround volume. Just getting Stero through the Left and Right speakers. (subwoofer works also) Tried other dvd's including Pal Region 2's and still no surround at all, plain old stereo PLEASE PLEASE if someone has got any idea whats up with my machine please reply? maybe someone has had the same or similar problem?