I found a macbook on CL and the users claim is: Had this macbook for 1+ year (no warranty) and one day the screen decided to play dead. I dont have time to take it and get it fixed, so i'm selling it as is. Everything else is FUNCTIONAL. When you boot it up, you can hear the fan and the CPU running, superdrive works and webcam is functional. So i'm pretty sure its just either an lcd issue or a backlight issue. if it is just the screen that needs to be replaced then i want it, but he says that it maybe be a backlight issue. What's the difference? is that the same as replacing the screen? Is there anything else i can should know or ask. He already mentioned that he will provide a monitor and me a cable to hook it up to see that everything else is working. But if anyone else knows what could cause this issue or anything else to watchout for that would be great.