I'm also effected by this bug, with the built (PCI) 3-port NIC on my
computer (lucid server). After every hard poweroff, my network entries
keep increasing. This makes the computer completely unusable for me.
The only thing really out of the ordinary on the box is that I disabled
ACPI (the system
Echo this. At one point I ended up with eth1 through eth12 on my
machine, which were all identical devices. Network manager in turn
added a new device for each, which was a right pain as I kept having to
reconfigure my static IP. It only stopped adding new devices when I
rebooted with the USB
