Hi, has anyone experienced this problem, where the aluminium part of the laptop just below the spacebar and above the trackpad causes indelible scratch marks on the retina macbook pro screen? i have never used any palm guard, keyboard guard or even a screen protector. just the bare rmbp 15". it does not make sense at all, unless the rubber tolerance surrounding the screen of my rmbp is incorrect, which causes the marks when the laptop is closed? according to the apple official repair guy this shouldn't be happening. recently i just replaced the screen under warranty so it's now scratch-free, and i'm wondering if i should get a screen protector this time? thanks!