samba - Nov 2006 - time delay in group listing on win-machines

Showing the group of a folder/file in a mounted samba share under 
XP(SP2)/2003R2-Server need some seconds. Only the SID of the group and 
the owner is shown initaly

This problem occurs not on a mounted share from a Windows-Server.

'getent group' on the Samba machine (via nss-ldap from 2003-AD) works 
perfect.

I've no idea, where should I search. Can anybody please help?

Thanks.
Steffen


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system environment:
-affectes clients: XP(SP2) + Appl. Servers (2003R2)
-Domain: 2x 2003R2 domain controllers with direct GID+UID administration 
(former SFU), AD in 2003-mode (nested grous)
-Samba-Server: Debian (failover cluster), Samba 3.0.22-1, UID+GID via 
nss-ldap, auth. via pam-krb5

smb.conf:

[global]
        workgroup = XX
        realm = XX.VKW.YYYYY.DE
        netbios name = SMB
        server string = SMB - FILE SERVER
        interfaces = eth2:0
        bind interfaces only = Yes
        security = ADS
        log level = 2
        syslog = 0
        log file = /var/log/samba/log.%m
        max log size = 1000
        load printers = yes
        printcap name = cups
#       cups server = AA.BB.YYYYY.DE
        preferred master = No
        local master = No
        ldap ssl = no
        admin users = Administrator, root
        hosts allow = xx.yy.zz., xx.zz.qq., 192.168.1., 10.0.0., 127.0.0.1
        printing = cups
        print command         lpq command = %p
        lprm command         hide files = /desktop.ini/
        csc policy = disable
#       oplocks = No
        map to guest = Bad Uid
        client use spnego = no

[printers]
        comment = all printers
        path = /var/spool/samba
        read only = No
        guest ok = Yes
        printable = Yes
        browseable = No
#       browseable = Yes
        public = Yes
#       writeable = No
        writeable = Yes

[print$]
        comment = printer drivers
        path = /etc/samba/drivers
        write list = root, Administrator, kolbe, @vwi-admins
        writeable = Yes
#       read only = Yes
        guest ok = Yes
        browseable = yes
        guest ok = yes

[home]
        comment = home directories all users (700)
        path = /home
        read only = No
        create mask = 0700
        directory mask = 0711
        root preexec = /etc/samba/scripts/mk_samba_homedir -h "%u"
"%g"

[vwitme-home]
        comment = home directories all users vwitme (700)
        path = /mnt/cluster/d220/sdd/sdd1/data/home/vwitme
        read only = No
        create mask = 0700
        directory mask = 0711
        profile acls = Yes
        root preexec = /etc/samba/scripts/mk_samba_homedir -h "%u"
"%g"


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