Horizontal Lines
Same as above, I have the horizontal lines.
What I've noticed is that they come and go. I've had the MBA since December, so I'm past my 90 day full apple support. I started to file a claim and realized the lines disappeared, so I dropped the claim.
They're not easy to see, by any means, but I notice them more in the top bar and the dock. What I've also noticed is that they don't go all the way across the screen. For example, in the top left corner of the menu bar, I can see them but they stop about 4 inches to the right.
Again, they come and go and they aren't everywhere but they LOOK like, every other row of pixels is a TINY bit brighter (or darker) so they look like lines.
I'll try to put a picture up, but in all honesty, I've gone back and forth about whether the lines were really there or if I was just seeing things!