[Samba] Master domain browser after IP change?

[Marc Sherman]

I just renumbered my local network, from 192.168.1/24 to 192.168.23/24. 
  My samba 3.0.10 server, which is configured to be the local and master 
domain browser, seems to be a bit confused:

Jan  4 22:03:34 pyloric nmbd[2308]: [2005/01/04 22:03:34, 0] 
nmbd/nmbd_become_dmb.c:become_domain_master_browser_wins(327)
Jan  4 22:03:34 pyloric nmbd[2308]:   become_domain_master_browser_wins:
Jan  4 22:03:34 pyloric nmbd[2308]:   Attempting to become domain master 
browser on workgroup PROJECTILE_WRK, subnet UNICAST_SUBNET.
Jan  4 22:03:34 pyloric nmbd[2308]: [2005/01/04 22:03:34, 0] 
nmbd/nmbd_become_dmb.c:become_domain_master_browser_wins(341)
Jan  4 22:03:34 pyloric nmbd[2308]:   become_domain_master_browser_wins: 
querying WINS server from IP 192.168.23.5 for domain master browser name 
PROJECTILE_WRK<1b> on workgroup PROJECTILE_WRK
Jan  4 22:03:34 pyloric nmbd[2308]: [2005/01/04 22:03:34, 0] 
nmbd/nmbd_become_dmb.c:become_domain_master_query_success(225)
Jan  4 22:03:34 pyloric nmbd[2308]:   become_domain_master_query_success:
Jan  4 22:03:34 pyloric nmbd[2308]:   There is already a domain master 
browser at IP 192.168.1.5 for workgroup PROJECTILE_WRK registered on 
subnet UNICAST_SUBNET.

It is successfully becomming the local master browser, but it's failing 
to become the domain master browser.  Is there any way to get samba to 
forget about its own old IP address?

Thanks,
- Marc