Reconditioning my folks' 2002-vintage G4 iMac. Lots of dust built up inside. I replaced the battery, though I don't think the boot problem has anything to do with that, and rather that the most recent OS installed isn't a supported one. Not sure what I'll do with it yet since the power draw is awfully high and it has a bit of whine, but it's in lovely shape otherwise. Going to see about getting OS 9 running on it for old times' sake.