Has anybody seen this on their Macbook Air? A very bright, fading line of 6-8 mm at the top of the screen? I just returned my MBA because of this a couple of day ago. Then today I go to the local apple dealer (in Denmark), and I see the EXACT samt bright line on the MBA screen in the shop. I also checked a unibody Macbook, a white Macbook, and an 24" iMac. None of these screens had the problem - it was only the Air. So now I wonder: is this a feature of the MBA, or was I right in returning it bacause of this. What is your opinion?