[Samba] Winbind problems when mapping shares

[peabresch at pepco.com]

I have just installed Samba 2.2.5. I am using Winbind and have changed the 
following in /etc/nsswitch.conf.

passwd: files winbind
group: files winbind

I successfully joined a PDC domain. When I list files, I see that groups 
are being resolved from winbind. I have  userid xtuser defined to Linux. I 
see the following:

ibm9672:/home # getent passwd | grep xtuser
xtuser:x:11240:11763:test user:/home/xtuser:/bin/bash
PEP+XTUSER:x:11240:10255:E56157 | 062-0000:/home/xtuser/xtuser:/bin/false

However I get the following error trying to map to Samba shares:

[2002/07/15 17:51:04, 1] smbd/password.c:pass_check_smb(545)
  Couldn't find user 'pep+xtuser' in passdb.

I have xtuser defined to Linux. I noticed that output from getent shows 
xtuser from Linux and PEP+XTUSER from the NT domain. The error message 
shows lower case pep+xtuser. Is this my problem? How do I correct it. I 
appreciate any assistance that anyone can provide. Thanks in advance.

Peter

The smb.conf is as follows:

[global]
        workgroup = PEP
        netbios name = IBM9672
        interfaces = 161.186.129.96
        encrypt passwords = Yes
        min passwd length = 8
        map to guest = Bad User
        password server = teb-pri cc-dc1 benn-dc1 pep-dc2 pep-dc3
        log level = 1
        log file = /var/log/samba/%U.log
        keepalive = 30
        os level = 2
        wins server = 10.10.211.242
        kernel oplocks = No
        winbind uid = 10000-20000
        winbind gid = 10000-20000
        template homedir = /home/%U/%U
        winbind separator = +

[printers]
        comment = All Printers
        path = /tmp
        create mask = 0700
        printable = Yes
        browseable = No

[x062nc4]
        path = /home/%u
        browseable = No

[homes]
        comment = Linux/Samba on IBM 9672-R26 Personal Shares
        path = %H
        username = %S
        read only = No
        create mask = 0700
        directory mask = 0700
        inherit permissions = Yes
        browseable = No
        exec = preexec = csh -c 'echo

[g062]
        comment = Common Directory for 062
        path = /home/PEP+PEPCOUsers-NM
        valid users = +PEP+PEPCOUsers-NM
        force group = PEP+PEPCOUsers-NM
        read only = No
        create mask = 0770
        force create mode = 070
        directory mask = 0770
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