Samba WINS server oddities

[Alder]

Setup:
   Samba 2.2.8
   HP TCPIP 5.4
   OpenVMS Alpha 7.3

I run Samba on a 3-node peer-to-peer LAN (named 'EREBUS') and have it 
configured to act as the WINS server for my two Microsoft W2K nodes. 
Things work OK most of the time, but browsing from the Samba host has 
always seemed to be broken slightly.

One of the W2K nodes ('ISZKAZ') never seems to appear in the 
SAMBA_ROOT:[VAR.LOCKS]BROWSE.DAT file and its (double) entry in the 
SAMBA_ROOT:[VAR.LOCKS]WINS.DAT file is a bit mysterious:

$ type wins.dat
VERSION 1 155096
"__MSBROWSE__#01" 1091286380 255.255.255.255 e4R
"EREBUS#00" 1091323845 255.255.255.255 c4R
"EREBUS#1e" 1091323845 255.255.255.255 c4R
"ISZKAZ#00" 1091276888 192.168.0.2 64R
"IS~ISZKAZ#00" 1091364496 192.168.0.2 64R    <----- ????
"KIRALY#00" 1091286345 192.168.0.1 64R
"KIRALY#20" 1091286359 192.168.0.1 64R
"SZEGED#00" 1091323845 192.168.0.3 46R
"SZEGED#03" 1091323845 192.168.0.3 46R
"SZEGED#20" 1091323845 192.168.0.3 46R

Can anyone help me understand what is going on with Samba and the node 
'ISZKAZ'?  FWIW, browsing from the two W2K nodes (i.e., with NET VIEW 
and the GUI) appears normal.

Thanks.
Terry