Hi, i just purchased an Apple Black Macbook and found out that my spacebar gets stuck to the base of the keyboard.When i tap it hard it pops out sometimes but then it goes back to its sticky position. I used a knife to to try to fix it, and it has seemed to solved the problem. I was just wondering if anybody else has come across such a phenomenon. If so i would greatly appreciate any feedback on a more professional solution to my "knife-under-the button" trick. Thanks.