After I've used Software Update to upgrade my OS to 9.0.4, can I get rid of all the files in the Update folder that is now on my HD (ie, "Upgrader files," "Tome," etc)?
What is this Tome anyway? Is this a compressed file? What application produces it?
PS: I do complete updates of my HD with Retrospect, which, I imagine, should eliminate any need to actually re-install system software. Right? Wrong?