I replaced the LCD in a Inspiron 1440 laptop for a customer awhile back, the original had been damaged when tossed into a back seat.
It worked great for two weeks, but then went black again.
I looked it over and felt I got a bum screen, so I got an RMA and another was sent to me. But, lo and behold, it doesn't work either.
When I hook a monitor to the laptop, works great, but not on the laptop.
I get no glow around the edges, and the cable from the screen to the motherboard doesn't seem damaged, but that is kind of all that's left, isn't it?