So my brother has this 1st gen MacBook. We bought two when they were released, one for him and one for my sister. My sister's was a total failure, it had basically every defect there was. Since she isn't too much on the bright side, she didn't take it into the store until after the warranty. She paid an arm and a leg for a logic board replacement, it works moderately well now. Now my brother's MacBook worked like a charm for a year or two. Then, the 80GB Seagate harddrive that came with it stopped working, it showed me the folder/question mark icon on bootup. I didn't know it was a known problem, and I had another HD handy, so I just swapped them and went on. A few days ago, that harddrive did the same thing. I put my own 250GB Samsung in, the same thing happened. I am desperate.