samba - Feb 2005 - smbclient doesn't get browse list from XP master browser

I've spent hours searching the archives and online documentation, but 
still haven't been able to find the answer to my browse problem; I hope 
someone here can help.  I'm trying to get smbclient to show the browse 
list from a windows xp machine that's the master browser on my subnet.

I have a very simple home network (single subnet).  My workgroup is 
'arda'.  My windows xp machine is 'a7v333' and has been elected
as the
master browser (exactly as I want).  From my linux machine, I use 
nmblookup like this:

	nmblookup -M -S arda

and I get this result, showing my XP machine as the master browser:

	querying arda on 192.168.3.255
	192.168.3.100 arda<1d>
	Looking up status of 192.168.3.100

         A7V333          <00> -         B <ACTIVE>
         ARDA            <00> - <GROUP> B <ACTIVE>
         A7V333          <20> -         B <ACTIVE>
         ARDA            <1e> - <GROUP> B <ACTIVE>
         ARDA            <1d> -         B <ACTIVE>
         ..__MSBROWSE__. <01> - <GROUP> B <ACTIVE>

         MAC Address = 00-04-76-E5-A2-EB

then I run smbclient (3.0.10):

	smbclient -N -L a7v333

and this is the result:

	Domain=[A7V333] OS=[Windows 5.1] Server=[Windows 2000 LAN Manager]

         Sharename       Type      Comment
         ---------       ----      -------
         IPC$            IPC       Remote IPC
         print$          Disk      Printer Drivers
         SharedDocs      Disk
         software        Disk
         Printer         Printer   hp photosmart P1100 series

	Domain=[A7V333] OS=[Windows 5.1] Server=[Windows 2000 LAN Manager]

         Server               Comment
         ---------            -------

         Workgroup            Master
         ---------            -------

Another windows machine on the subnet can browse through "network 
neighbourhood", so I'm surprised that smbclient doesn't get the
browse
list.  Does anyone know why this could be?

Also, I'm surprised to see the computer name showing up where the domain 
(workgroup?) should be shown.  (The workgroup / computer name are 
correctly configured as "arda" / "a7v333".)

Paul