Someone I know is planning to sell me his old MacBook (black version with 2 GHz Core Duo processor and 2 GB of RAM). He says that he had to pull out the 80 GB hard drive because it gave him a "gray screen of death," and that the disc drive isn't functioning properly (a new hard drive also didn't work, as the gray screen of death was still there and the disc drive wouldn't boot). I still have two 2 GB RAM sticks and two 250 GB SATA hard drives left over from my broken HP Pavilion dv-7 computer (salvaged quite a few parts from it that could work in a MacBook). Could it be likely that this machine has a problem with the logic board, or should both the hard drive and disc drive be replaced? (I could try booting it from a FireWire drive to see how it works.) Thought I'd get some advice before I spend my money. I have been pondering getting an Intel MacBook that I could easily repair to working order.