I got my Unibody MacBook the first day they were available, and since late December, the hinge has gotten stiffer and stiffer, making a cracking noise when I move it after it stays in one position for a few seconds. I took it to the Genius Bar (covered under AppleCare) but the people there wouldn't do anything about it, saying it's within normal spec and classifying it as a "user perception issue." (The slightly condescending sound of that phrase is for another post.) Has anyone attempted to lubricate the hinge in their laptop themselves? I removed all of the bottom paneling and looked at the hinge, but didn't see how to separate it from the case easily. Would it be a bad idea to try to squirt a little silicone lubricant into the hinge to see if that helps the issue? Is there another trick I could try. My mom has a Unibody Pro with a hinge that glides nice and smoothly and it's annoying mine is no longer working properly like this. Any advice is appreciated.