I just purchased a 40" Sony Bravia and a Sony surround Sound System. After every 15 min or so while watching TV is makes a loud snap noise from inside the TV. I''m not sure what is causing this. I called Sony and they asked me if I had a surround sytem and that the magnets in the speakers might be causing it. They also told me to keep the speakers of a minimum of 4ft away from the TV. I figured the magnetic could mess up the screen, but no make the TV to make a loud popping/snap noise. Any help is much appreciated.