again me, now after using it yesterday and today some hours, definitely no lines, but a little flickering when looking at the test images posted above and that causes the burning in the eyes if you sit longer infornt of the screen.
so I think I will give it back.
Oh, i regret to hear your MBA is also affected. I'm going to send back my second replacement tomorrow.
I'm givin up. I'm disappointed Apple doesn't seriously care about the quality problems of such a high-priced machine.