For some reason, my keyboard touches the screen when the computer is closed. Every time I open it there are 4-5 "lines" of oil on the screen, where the edges of some keys have met the screen (mainly the keys around the middle of the keyboard). This is simply from closing the lid. I imagine it would be worse if I carried it around regularly. On closer inspection, the spacing between the lid and the body is not even around the computer. Towards the hinge it gets wider by a couple of mm. Looking at the front edge with the lid closed, the left corner sits slightly more closed than the right corner. Looking at the right corner, there is a small but visible gap between the rubber gasket in the lid and the body. This says to me the lid is a bit warped, and maybe this is causing the keys to touch the screen. It's not a catastrophe, but it is quite annoying to have to wipe off the key marks every time I open the computer. I'm tempted to take it back, but the computer has no other issues (so far). There's one tiny tiny speck of dust under the screen, but no dead pixels. The battery cover is fine. Of course, it would be a gamble...a replacement could have other problems. What would you do?