My Macbook Pro developed a severe wobble in the display so I took it in to the Genius bar to see what could be done. They told me that fixing it would involve replacing the whole display because the problem is due to a piece of plastic inside breaking off. I suspected it just needed to have the hinge screws tightened so I brought my laptop home and gave it a go using this guide. Well, it turns out I was right! The Torx screws joining the hinges to the the display had come loose at both sides. To fix this, I got the hinges lined up straight on the display and tightened them down. To attatch the hinges to the body, I tightened one screw on each side half way and closed the display to line it up with the body. I then proceeded then to tighten all of the Torx screws on the body. Thank you for the great guide, Philip! I love this site!