Hello! I need some help to remove they keyboard on my iBook because i want to add some RAM. I tried everything and nothing is working. I tried to push the keyboard release tabs but that did not work. Then, I tried to unlock by turning the screw 1/2 turn and push the tabs. Did not work too. Then my brother turned the screw for many turns, but now I can't turn the screw to the left or the right. The plastic around seems to be broken. I'm desperate!!!