Pathetic, just pathetic. When will Apple come to its senses and redesign the iMac and get rid of this horrible glass plate? It does make sense, though. At night, small bugs get through my window screens and go straight for my monitor. Fortunately, on my white iMac, they can't get inside. But on the aluminum one, since the glass isn't sealed, they will find a way to get through. Do not for a minute even consider letting Apple charge you for cleaning the screen.