Well, I'm back and still unresolved. I bought a used iBook G4 14" A1055 (identical to the problem machine) and verified it works as designed. So, I attached the problem machine to it in Target Mode and did a disk clone. Still no go. Next I took the hard drive out of the working machine and put it in the problem machine, and lo and behold, it booted up. Unfortunately, it will only run a few minutes, then it freezes with no cursor activity or anyway to get it going except a power reboot. I'm surmising this points to a logic board problem. I'm going to put the original logic board back in it and see if that makes a difference. Still cannot get it to start up from any install CDs. More later.