So from day one my Black MacBook has loose plastic that makes a creek when I touch it... it is the piece that frames the headphone jack and the usb ports... though it is near the second screw towards the front of the frame? I tried to tighten the screw with a set of eyeglass screwdriver but it didn't really work. As well when I close my lid it is doesn't sit straight on the frame it definitely is crooked. Does anyone have any suggestions as to what to do about these small cosmetic defects?