Dead USB

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?

So I booted the Ubuntu live CD and had no USB there either so i think they may be physically dead, any ideas? I am going to open it up today and see if there is anything obvious

It could be a mechanical problem with the ports themselves (broken pins or "slats") or something could be fried on the logic board and it's reporting the wrong status (i.e., that it's working).

Good luck..

I have thye system dissassembled now and can't see anything physically wrong...The weird thing is that both Mac OSx and Ubunbtu picked up on the fact that there were 2 ports

The other Ibook issue I am having is that when plugged into the ac adapter the system is leaking electricity...by that I mean if i touch around the plastic on the back i get a mild shock...or if it is sitting on my metal desk at work the disk gives me a tingly shock.....maybe this zapped the USB...any ideas on that?

Is it possible that a screwed up firmware could cause this?

I have also acquired the Apple Hardware Test CD and it passes all tests