[Samba] Duplicate filename with Samba 3.0.28

[Steve]

Hello,

I'm having an odd problem that I can't find a resolution to.

I have a Freebsd 6.2 server with recently upgrade samba software (from
3.0.26a) and an WinXP client.  There's a single file:

1015280 -rw-r--r--  1 userid staff   991M Jan  7 09:13 fbsdusb.img

shared from \\server\tmp, that appears twice when browsed from WinXP
or smbclient.
If I rename it (i.e. fbsdUSB.img or fbsdusb.iso) or move it to a
different shared directory, it appears only once.  I can't figure out
what is going on here.  Any ideas?

My config:

[global]
   log level = 1
   workgroup = WORKGROUP
   server string = Samba
   load printers = no
   log file = /var/log/samba/log.%m
   max log size = 50
   security = share
   socket options = IPTOS_LOWDELAY TCP_NODELAY
   dns proxy = no
   guest ok = yes
   guest account = userid
   printable = no
   public = yes
   create mask = 0644

[cdrom]
   path = /cdrom
   writeable = no

[mnt]
   path = /mnt
   writeable = yes

[ftp]
   path = /u0/home/userid/ftp
   writeable = yes

[img]
   path = /u0/home/userid/img
   writeable = no

[snd]
   path = /u0/snd
   writeable = yes

[tmp]
   path = /u0/home/userid/tmp
   writeable = yes
   wide links = yes
   follow symlinks = yes

[u1]
   path = /u1
   writeable = yes