More information as I have tinkered with it. When I connect the sleeping firewire drive, it wakes up and accesses the drive just like it does on the emac that works properly, but no icon ever shows up on the desktop (yes, I checked the finder settings to make sure that the icons would pop up on the desktop)
Tech Tool 6 shows the firewire at 400Mbps, and this is supposed to be a check of the bus. This is a known good cable.
Could I have two damaged ports?