Note that you are voiding your warranty.
Remove the two screws in the lower corners.
You then need to use something like a credit card (hard thin plastic) and work it around the screen bezel to pop all the snaps around the lid. Be careful when doing this around the clutch because of the display inverter and antenna wires that pass through there.
It's really not that easy and not for the faint of heart since you could bend the lid while trying to get it off, making the problem worse, or damage the display or inverter.
Steve