After playing with my friend's MacBook, and having a long hard think, I'm definitely of the opinion that the hinge on my MacBook is far too loose. It can still support itself, but I get major wobble upon opening, it even wobbles when I type (not ferociously). I don't get any sort of resiliance when I try to open or close it, I literally have to be careful as so not to slam it, it's like I'm closing thin air. It just doesn't feel sturdy enough for a notebook which needs everyday carting around and use. Also when the MB is closed the top lid (with the screen) slides a bit this way and that over the base. Only a few millimeters, but enough to notice. The problem is, I'm most likely only going to get one opportunity to get to see an genius. The MB is covered by AppleCare and so forth, but will the genius open the thing up right there and then and give whatever needs tightening a good tighten? Have any of you experienced this issue before and was it solved, and if so how? (Time, in-store or send off job, etc etc) Thanks for any help in advance.