Hello there! I got a MacBook about 3 days ago, and so far I've been extremely impressed with the computer. However, today when I opened up the MacBook from its closed position, I noticed that along the plastic portion that surrounds the LCD screen, there were fair-sized scuff marks left all around it, about 8 in total. While not extremely intrusive, they are quite visible, and weren't there the last time I had used the hardware. There was also what appeared to be a scuff mark left on the LCD screen, but it wiped off rather easily with a microfibre cloth, although I can't say the same for the ones on the outer plastic. I've never experienced this before, and I'm wondering if this is some type of common problem? I know for sure that nothing came in contact between the keyboard and the screen, and it wasn't shaken or bumped because I had just used it before going to sleep 8 hours before. Frankly, I'm a bit worried to even leave it in its closed position now... Any help would be appreciated!