I am very perceptive with electronics, but I noticed this: At the top of the screen, images look darker and crisper and at the bottom they look more bright and less detail. Here's an example of an icon that should look the same, but it looks distinctly different (and it's not the camera exposure -- what you see is more or less how it is). Should I return the machine and get another? Do you think Apple will even consider it an issue if I wanted to get it replaced? Do you guys have the same thing? I only noticed when I had a lot of the same icon scattered on my desktop and the same icon looks noticeably different. Of course, I am always the person to notice anything about electronics whereas other people would never have so much as a clue. Edit: even though the video files are what got me seeing that things are different, you can kind of see it with the folder icons as well. Help? Advice?