I just acquired a G3 dual USB(800mhz) ibook in a sweet trade. I fixed the logic board issue, now the only problem I am having is with the USB. System profiler detects both USB ports but no devices ever get detected in them. I have tried USB drives, ipod, apple keyboard. I have tried resetting the system by removing the ac and battery for 30 mins. I have also installed a fresh copy of tiger. The firewire port does work. Any ideas?