Before I start, I want to stress that this is NOT the normal buzzing problem which everyone talks about with the Panasonic Plamsas.. This buzzing is from the speakers! I bought by Plasma back in Novemeber and it was fine, but it had a very slight fault. In April it went off for repair and I was given a loan set (PW16). 2 months later (to the day) I got my set back and it was in a right mess. Fingerprints all over it and 132 hours clocked up. However, last night when it was quiet, I noticed a buzzing which I know wasn't there before (on my original screen or the loan set). Like the buzzinghappens when there is a lot of brightness on the screen, and gets louder proportionally to the amount of white on the screen. So, my inital reaction was that it was a transformer buzz. However, when I got closer, I noticed that it was coming from the speakers and not the screen! After testing for a while I found that it only happens when the volume is set to 1 or greater. When its muted or the volume is at 0, there is no noise at all. From my seating position, the noise sounds like a buzz, but if I go to the speaker, its more of a br-br-br-br-br-br-br-br sound. The interesting thing is that the noise doesn't get much louder when the volume is increased. At 0 its silent, At 1 there is a noise, At 50 the noise is slightly louder, but not much. I guess that this means that interference is being introduced AFTER the amplification stage. It happens on all of the inputs (PC, AV and RGB/Component), and as a test to provide that its not influenced by any external means I did the following: 1. Removed all connections (so there was only mains and speaker connections) 2. Selected an input (Lets say 'PC') 3. Used the 'Invert' feature to generate a white screen. 4. Put the volume at 0 - No Noise 5. Set the volume to 1 - Noise. 6. Turn 'invert' off (Black Screen) - No Noise. Does anyone have any idea what could be wrong? I guess that its safe to assume that its a 'fault', as it wasn't like this before.