Anyone else experiencing this? My Mac is only 2.5 months old, yet when I open and close it, I get these sporadic, clicking-like noises, almost as though the plastic hinge is coming into contact with the actual notebook, generating friction. I'm not quite certain what to make of it. Sometimes, it opens and closes smoothly and silently, yet more often than not, it makes the aforementioned noises, and I'm just wondering if this should be cause for concern. Has the plastic expanded from the heat? Could it be a loose spring? I honestly have no idea. This is my first Mac, so I'm not entirely aware of common flaws and faults. I'm very pleased with the over-all product, and will now be a Mac user for life, so this minor annoyance is something I can definitely learn to live with, but I have no idea if said minor flaw will grow into a major flaw of sorts. That said, if it's nothing to worry about, and other people are experiencing it as well, I won't bother driving 1 hour to the nearest Apple Store, only to be laughed at by some Genius. Beyond that, I've heard and read the horror stories... I don't know if I want my new notebook being opened and prodded for the sake of a minor issue, if it is indeed minor. Just wondering if anyone else gets this clicking/friction like noise, not to be confused with the infamous haunted house-creaking door like noise on the older models. This is more a cracking/clicking type noise.