Hello: Recently purchased a demo Apple 15" LCD display in pristine condition, added it to my other 15" display for a 2 monitor set-up. It's great -- except it has started to emanate a buzzing sound from the back upper grille. My other 15" display is about 10 months older and makes no such noise. Any ideas what the cause could be? Do I need to go through the hassle of servicing the display if I can live with the noise, or is this a signal of a failure to come? Any help/experience much appreciated. JIM. -- JIM BLOKLAND jim at blokland.com http://www.blokland.com