[Samba] local master browser

[Peter]

Hi list,
I have a network with a Linux server, running samba 2.2.x,
and 10 Workstation. 3 of the workstation are Win2000 and
the rest is Win98 and WinME. 
In the logfiles I see that every 10 Minutes the Win2000
Workstations are forcing a election to become the local master
browser for the network. The server wins the election each time
but there is still a small amount of time (maybe 4 minutes) where
the server is not the local master browser and some of the user
encounter interruptions.
Is there anything I can do to stop the elections either in smb.conf
or at the Win2000 Workstation?
I would be thankful for any hint or idea.
Peter

---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.481 / Virus Database: 277 - Release Date: 5/13/2003