Can anyone help, I have a sony bluray home theatre system BDV-E370, which I use along side a sony 40" Bravia for approx 16 months and until recently all was well! However recently when I try to play a bluray I am getting a sound distortion which appears to be from the centre spaeker, however if i play a dvd the issue appears to be gone. I have tried turning the sound down, in case it was too loud, but to no luck. Anyone have any ideas before i try replacing the speaker?? Many thanks, Tim