I only get like 1 small line in the left part of the first image and another one, about the same size, in the right part of the second image. But they are barely noticeable. And I'm not surprised because the guys from NotebookCheck have said that the display doesn't have the best gamma but it does reach quite good values of 2.5 which is pretty good.
PS: I am using the SPlendid calibration profile but without the splendid software. Check around the forums and maybe that will make it better.
