Hi all, I just won an iBook G4 800MHz on eBay that crashes when moved (I haven't even received it yet.) The seller said it was diagnosed at the apple store as a logic board failure. I am going to buy a new logic board and install it (I've been doing this sort of thing for years so it's not a big deal for me,) but I don't see how a failing logic board is sensitive to motion unless one of the components on it is not soddered correctly. Does anyone know what causes this, as I could possibly just look into repairing the logic board itself or perhaps fixing the logic board and then selling it. Also, does anyone know if the G4 800 iBook can take any G4 12" logic board, or does it require only logic boards from the 800/1000 Mhz family?