samba - Jan 1999 - Problem connecting a Win98 machine to a Samba 2.0.0 server

Hi,

I have a problem:
I installed Samba 2.0.0 from the sources on my x86 Linux (Red Hat 5.2)
without any problems.
I have 2 Win98 machines that can use SWAT without problems.
One of the Win98 is able to view the samba server shares and use them.
The other machine refuses to see the shares.
Also, I know this is probably a FAQ, but what protocol do I need? I have
TCP/IP, NetBEUI and IPX, are they all required for Win98?

Thanks!
-- 
Francois Jaccard