Ok this is not super great. My iMac is maybe 14 months old, left it turned on (sleep mode) for a day and forgot it was turned on, it's that quiet and that's a good thing. The bad thing, I now have condensation behind the glass on the iMac panel. It's mostly in the right and left upper areas of the panel. How did this happen?! I have Applecare, what am I likely to expect from Apple? Is this a design problem?