Hi, I met same problem like you in this spring and solved the problem with a simple trick as following: I modified an entry related with 8139too module(device name is pcnet_cs) in '/etc/pcmcia/config' because of I guessed that the card service(cs) accepts first-matched(or default) class('pcnet_cs') than ‘8139too’ while booting. --- device "pcnet_cs" class "network" module "pcnet_cs", "net/8390", "8139too" --- Therefore, I manually modified '/etc/pcmcia/config' file like this: --- device "pcnet_cs" class "network" module "8139too", "net/8390", "pcnet_cs" --- After that, ‘modprobe’ or ‘insmod’ etc., then reboot. Now the service, ‘cs’, would accept ‘8139too’ class than ‘pcnet_cs’ class for ‘pcnet_cs’ devices properly. Honestly, I don’t know why, but it seems to be specific problem with some 8139C-type devices. (Beware this solution couldn't be acceptable with some devices.) Good luck, J.H.B.