I've had my Panny 6 for a couple of months now. Recently its developed a buzz which changes pitch depending on the brightness of the image, white being the worst. This occurs when fed from Sky+ via Scart and DVD via component to VGA. Now I don't think my ears have suddenly tuned in to this. I sit approximately 3 metres from the screen and to be honest the noise spoils the whole thing. Is it me! Have I developed bat hearing? Has anybody else had this problem and got it sorted?