I had to send it in to Hugo so he could crack it open and discover that they changed the chipset without changing its identifier code on the USB port (bad Linksys!).
This is why I refuse to buy Linksys network adaptors. They do this all the time, just change the chipset, making a completly new product, but with the same model number and no easy way to tell. Once, I bought a card specificially for a Linux machine. The box said it supported Linux, so I grabbed it, tried it, and dug deeper into the problem. I had a newer revision card that did not have Linux support yet. After talking it back, I grabbed another brand card. I thought about trying them again until I helped a friend reload his machine. We couldn't get the right NIC drivers, and ended up having to pull the card, look at some obscure chip, then finally get the right drivers.
Glad to see they haven't changed. I'll continue to avoid their NIC products.