Re: Dell 2005FP (20.1" / 16:10) LCD for $559 Today only!!!
Simple. Set your screensaver to "blank" and press the preview button. Turn your lights off in the room, keeping it completely dark so as to avoid washing out the screen at all. Take a good look at the blank image. A little milky white glow over the entire screen is normal. What you're looking for is a bright area, usually in a corner, that will appear brighter than the rest of the screen.
That is backlight leakage.