T30 w/ Port Replicator problem

I have now undocked my laptop to verify that in fact the Western Digital device works.

A simple lsusb shows:

sbin/lsusb
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 001: ID 0000:0000
Bus 002 Device 003: ID 04b3:3006 IBM Corp.
Bus 002 Device 004: ID 04b3:3005 IBM Corp.
Bus 002 Device 002: ID 1058:0100 Western Digital Technologies, Inc. Bus 001 Device 001: ID 0000:0000

I have my USB Keyboard and my Western Digital, but only when I use direct USB connections to the laptop, NOT through the port replicator.

Thanks!