Hey! I had a problem with my MBP. The piece of alu (back case or backside case or whatever its called) that covers the HDD and the Ram and all that stuff made a clicking noise when i tapped on it. I was a really loud very annoying noise. i fixed it by putting a very small piece of paper in between the cover and the computer chassis. I do not think that it is actually touching any components inside. Could this cause any kind of damage to my machine? I am afraid that it might act as some kind of a connection between the internal components and the alu chassis and cause a short circuit. What do you think?