Thank you Valleychick for your support request. I will start by telling you that I am a BIG FAN of Mac computers . . . however, as much as I admire their insanely great strides in innovation by translating artisitic design, functionality, and technology beautifully into a personal computing device, I have been disappoionted how much reliability and overall quality seems to be sacrificed.
The best thing you can do with your problem is first, check out this link:
http://blogs.eweek.com/applewatch/content/macbook/is_light_macbook_air_defect_heavy.html
Next, gather your receipts, packaging and all the cords, manuals, disks that came with yourt air book and return it ASAP to the store or reseller you purchased in order to exchange. What you describe is all too common with your model. You may want to print the blog from the link above as well and ask to make verify visually the screen quality of the screen before you take another defective laptop all the way back home.About $85.00 per hour, plus parts is what you will end up paying for labor for Mac tech to repair your AirBook if this problem or others pop up after the warranty expires, so don't be afraid to thoroughly have your exchange computer tested before you take it home. Wish I could FIX-YA better, but this is truly your best recourse. Please send us your feedback if this helped and let me know how your experience with returning the computer went.