[Samba] Running Samba twice

[tom at sanguinarius.co.uk]

Can samba be running twice on a machine so that it can exist on 2 seperate
networks with 2 seperate configs?

I have tried using the -l and -s flags to run it twice and nmbd runs fine
on both interfaces but samba fails with :

[2003/01/13 12:11:33, 0] lib/pidfile.c:pidfile_create(86)
  ERROR: smbd is already running. File /usr/local/samba/var/locks/smbd.pid
exists and process id 23854 is running.

Any help would be greatly appreciated