Recently, my son's iBook G4 failed. It simply would not start upon pressing the on button. I mean nothing. No response from the computer at all. The day before it was working fine, with no hint of a problem. The Apple Authorized repair shop determined it was a logic board failure, and Apple says this logic board is not covered under the recall program. We didn't get the AppleCare Extended Warranty Does this sound like a logic board failure? It's the second major problem since we bought the machine in Dec. '03 (first was a touch pad failure that Apple fixed under normal warranty) and the computer gets no more than 8 hours of use per week, and very gentle treatment. I'm loathe to buy a new logic board for 600-700 bucks and my Mac addiction is seriously waivering. When I called Apple, they said "sorry, you should have bought AppleCare."