My late 2012 imac which is only a bit more than a year old has dust on the lower left and lower right corners. Its been there for a few months now and looks to be slowly getting worse. I thought that the slim imacs have the glass and the lcd panel laminated together so there isnt any gap between them, so how is this dust showing at all? It also seems to me that it has something to do with the fans and air flow since the dust has a pattern as you can see on the picture. Not sure what to do. One of the reasons of getting the slimmed imac was that i thought the dust issue was solved. I cant seem to find any other threads about this issue specifically for the slimmed imac (maybe people havnt started noticing yet or is it just me?).