When I use my computer, at random times, I hear a popping noise that sounds like it's coming from the plastic hinge without me moving it. I think this has happened on other 13" models I've toyed with, but I can't fully remember. Everything else works great and it doesn't happen super often so I think I'm just going to deal but does anyone else know what's up? I think it might be the heat coming off on the plastic hinge causing a popping noise every once in a while but not sure... computer works great. Also, it's not the sudden motion sensor clicking for sure. I know what that sounds like. Thanks guys.