These units are more of a challenge to get open than most monitors. Here are the steps:
remove all cords - power, VGA/DVI speaker
remove stand - pull off hinge cover and then remove 4 screws
2 screws at bottom corners of case.
Now comes the fun part.
On the bottom edge there are 2 slits on on each side of the monitor about 3-4 inches in from the side. Use a small flat bladed screwdriver inserted in this slot to pop the two halves apart. Once you get a small gap just work your way around the entire monitor until the case halves are released from each other, but don't pull them apart yet. When opening most monitors the front comes off first but on this one the back case comes off first. You will need to again use your flat blade screwdriver inserted between the two case pieces and under the LCD panel and gently apply pressure. At the same time you will need to pull one end of the back case away from the panel, there are two plastic catches on each end that hold the panel inn the back case. One end will release then the other sould come right out so you can remove the back plastic case from the electronics. Now to get to the electronics you will need to remove the two screws on each end of the panel that hold the metal RF shielding in place. Also there is a screw in the center at the bottom of the panel that will need to be removed. Next unplug the 4 backlight power plugs. Slightly lift the shield so you can get to the flat ribbon cable going from the driver board to the panel. It will unplug from the panel by pressing in on the two release tabs, one on each end of the plug. Now you can get to the electronics. I am guessing you are having power issues with the unit. Check here for power supply repair kits if you need to get parts for your unit.http://www.ccl-la.com/catalog/product_info.php?cPath=21_34&products_id=168
I hope this helps you get the case off, if so please rate my solution.