I have a Asus Gl771jM laptop. I have taken out all the screws from the bottom, the hard drive, and the optical drive. I then removed all of the glue with a Spudger and started to open the case but for some reason it will not open. The back by the Kensington Lock and the other side by the port for the power cord will not open and I'm afraid to force them. Help from anyone who has this laptop or has had this problem would be much appreciated.