samba using a different interface

[xlargebear at bellsouth.net]

Hello
I'm trying to configure samba and it's not working. The problem seems 
to be that samba is using the wrong network interface. I have two 
ethernet ports in my mac. The one in use is 192.168.1.103, however, 
samba seems to be using 192.168.1.102 which is a card that I was using 
at the moment I installed YDL 4.
How can I make samba use the built in ethernet interface? What 
configuration file do I need to change since there's nothing about this 
in /etc/samba/smb.conf?
Thanks