ethernet card no longer recognized

I've got Ubuntu Hoary on an IBM Thinkpad with a built-in network card, which was working without any problems what so ever.

here's the thing; for the last 5 months or so i've been using a Netgear wireless card exclusively. In fact, I actually upgraded from Ubuntu Warty 4.10 to Hoary 5.04 using apt-get over the wireless. after upgrading i've been happily using the wireless card. yesterday, for the first time since the upgrade, i tried to plug a network cable (from the router) to the LAN card and it no longer works. it doesn't seem to even be recognized anymore. for some reason, during the update Ubuntu switched the card designations around. eth0 was the LAN card and eth1 was the wireless. but now eth0 is the wireless. i guess because it was plugged in at the time of the upgrade.

lspci shows this: 0000:00:03.0 Ethernet controller: 3Com Corporation 3c556B CardBus Tornado (rev 20)

lsmod grep 3c59x 3c59x 37160 0

inetc-network-interfaces i've got this: # The loopback network interface auto lo iface lo inet loopback

# The primary network interface auto eth1 iface eth1 inet dhcp name Ethernet LAN card

iface eth0 inet static name Wireless LAN card wirelessessid lovelovelove wirelesskey lovelovelovex wirelessmode Managed wirelessrate 54M auto address 192.168.2.100

what's left to do to get the LAN card to be recognized? is it a hardware detection problem, caused by the upgrade, or just something i'm missing in a configuration file? the wireless works fine, as eth0. i've tried swapping the cards around (wireless as eth1 and LAN card as eth0) but it didn't work.

ubuntu's network-admin tool only shows the wireless card and the built-in modem. there's no 'add device' option to the gui tool.

tips on what i can i do to get the LAN card to work?

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