I have a G4 Powerbook 12" with 1.25 gigs of ram and 1.5 mhz, 80 gig hd running on OSX 10.4.10 Anyways, my external hard-drives (1 Western Digital, 1 Seagate) and my soundcard won't mount on USB or Firewire. The external hard-drives DO work on my pc. I do get power from every port which leads me to believe it's a software issue. They just don't mount. Any ideas on how to attack this?