Hi folks, I've seen quite a few people comment that their new MacBook Airs have a gradient effect at the bottom of the screen. I have a screen gradient issue but it's not quite the same - my screen starts out a little bit darker at the top and then as you move down the screen it gets brighter. My 13" 2011 MBA has an LG screen. Anyone got the same issue? I love this machine, but I'm wondering if maybe I should return it and go back to my MacBook Pro until they get some decent screens in the Airs.