So I just bought an iBook 12" G4 for my parents... opened it up, re-installed all software and OS X... and after some time, noticed that in the System Profiler, it was not recognising the extra 512mb chip I had the store install. So I opened it up, reistalled the chip again thinking that they might've installed it badly... but again nothing. So I reistalled the original 128mb chip, and again, nothing. Again and again i've re-installed both chips, and still the machine does not recognise anything. Now I know about static blowing chips, so I did take precautions... but what seems strange is that the machine just does not recognise that something is even in the slot, let alone in there and faulty. Anyone else had this problem?