My laptop was doing fine, and suddenly stopped working completely - as in the screen was black and didn't change. It seemed like the monitor was broken because I could turn the computer on and off, and it made sounds like it was turning on, and the capslock key would work... but the screen remained blank. I brought it to the apple store, and they said it was the logic board, and that it would cost $1000 to fix. I am in a country without apple, where they liscence another company to fix and sell apples, and I do not really trust these people. Do these symptoms suggest a logic board problem, or really a monitor problem and they are trying to bill me for the most expensive thing possible? THANKS