Hi guys, I've got a niggling problem, I've been wondering if anybody else has the same issue? My MacBook pro is about 2 weeks old. As soon as I unboxed it, I noticed some stains on the speaker grills. The stains are only visible in bright daylight. The stains seem to disappear for a while when cleaned with a damp cloth, but quickly come back. The stains weren't any particular shape at first, but after repeated cleaning, they same to have morphed into perfect circles... Sorry if the pictures aren't that clear, it's quite difficult to capture.