Recently I have get the new Lenovo ThinkPad T420s,in the starting when I get this one at that time I was very happy with that but now I am not happy with the so many other features of this ThinkPad. And while using this one at that time I can see the 2 pixel errors on my 1600x900 screen, but still I am not so worry about that. But I came here to confirm that the lower surrounding of the tft-screen itself (the black plastic bar) stands away from the tft surface by some 1mm during operation. And aso for that reason only I am thinking that this thing is related to temperature, because the room between plastic surrounding and tft surface lowers a bit when the device is switched off. Anyone can suggest me in this cause? Or anyone also has the same problem.