>> We have 2 Red Hat 9 boxes that seem to have taken over the browse list
>> because while os level was set to 20 the only machine listed in Network
>> Neigborhood was a red hat box and then then we changed the os level to 0
>> now it shows no machines when browsing.

> Try moving the number up not down.  Setting it to 0 almost guarantees 
> that the RH box will be the Master Browser.  If you set it closer to 90 
> then it can only beat Win95/98 machines.

Oops, Should have rechecked that answer
http://us3.samba.org/samba/docs/man/NetworkBrowsing.html#id2896362
If you have Windows NT machines that are members of the domain on all subnets 
and you are sure they will always be running, you can disable Samba from taking 
part in browser elections and ever becoming a Local Master Browser by setting 
the following options in the [global] section of the smb.conf file
Example 10.5. smb.conf for not being a master browser
[global]
domain master = no
local master = no
preferred master = no
os level = 0