SLES 11 SP 3 winbind users dont get correct groupmembership

SLES 11 SP 3 winbind users dont get correct groupmembership

My problem is, as mentioned above, the Users dont get the proper
groupmemberships.
wbinfo -g
shows the group,
getent group <group>
says the user is in the group but
id -G -n <user>
only shows the
Domain\users
group.
I have tried deleting the cache and running the winbindd with the -n
switch but that had no effect. An excerpt from my smb.conf:
[global]
workgroup = <DOMAIN>
passdb backend = tdbsam
printing = cups
printcap name = cups
printcap cache time = 750
cups options = raw
map to guest = Bad User
include = /etc/samba/dhcp.conf
logon path = \\%L\profiles\.msprofile
logon home = \\%L\%U\.9xprofile
logon drive = P:
usershare allow guests = NO
idmap gid = 10000-20000
idmap uid = 10000-20000
kerberos method = secrets and keytab
realm = <domain>.local
security = ADS
template homedir = /home/%D/%U
template shell = /bin/bash
winbind refresh tickets = yes
As always any help would be appreciated :)