There seems to be dirt or bubbles under the glass of my late 2008 15" MBP. Does my APP warranty cover this sort of thing? How is this sort of thing normally sorted out? I have no idea how it got there. I was under the impression that the glass was sealed by the rubber on the sides of the screen. Also, it is even possible for the screen or the glass to bubble? I'm not 100% sure if its a bubble, but it seems like it has a bump with a visible surface. Hope that makes sense.