I may have to reinstall or clean-install to fix certain problems but I don't want to lose my documents and applications. I have 9.2.2 currently on my G4 and I've never understood which to do? - "reinstall", "install," or "clean install"? - I have to get 9.1, then get updaters for 9.2.1, then update to 9.2.2. Thanx.