http://www.youtube.com/watch?v=qS2ABy7pzew As you can see from the video above.. There is a bug behind my screen.. I've no idea how it's gotten there, as i've never done anything to my iMac in way of opening it.. Will Apple sort this kind of thing out? I've got full Applecare till 2013.. It seems silly that this thing isn't sealed in a way to stop this kinda stuff from happening!