Airport card not detected with Leopard

I just upgraded to Leopard today - I didn't do a "clean install" just an upgrade. Everything went great after the upgrade, my computer did a reboot connected to my wireless network using the airport card - detected updates - downloaded them using the airport card... then after the computer rebooted again from the updates, my computer doesn't recognize having an aiport card at all.

I removed and reinstalled the airport card, that didn't work.

Any suggestions? Thanks!