Samba problem under ubuntu 7.10

[lhunsicker at mchsi.com]

Good evening, folks.

I have installed ubuntu 7.10 with samba.  I opened my firewall to samba traffic
(using Firestarter).  But something is still not right. 

My configuration:  Ubuntu server with samba as the domain controller, and then
two Windows boxes connected by a wireless internet connection.  One of these --
call it clientB -- has the printer attached to it.

As things now stand, I can see everything on clientB from clientA, and can print
from ClientA.  I can also see the two file shares on the ubuntu server from both
clientA and clientB.  From client B I can see the server shares and the clientA
shares.  The only thing that isn't working is that I cannot see from the server
the shares (including the shared printer) on either clientA or clientB.  Of
course, therefore, I cannot print from the server.  

So, in sum, the only thing not working is that I cannot see any of the shares
from the server itself.  

Any suggestions to fix this?

Many thanks in advance.

Larry Hunsicker