[Samba] win 7 no logon servers available error

Hi
I have joined a win 7 computer to my samba domain. Logging in gives me:

'There are currently no logon servers available to service the logon request.'

The win 7 machine is called S-PC and getent passwd gives me:

S-PC$:x:1002:100:Machine:/var/lib/nobody:/bin/false
lynn2:*:1001:1001:l:/home/lynn2:/bin/bash

lynn2 is an ldap user who can login OK.

I see that /var/lib/samba(netlogon is empty.

I've been through endless posts trying to sort this out. I have a samba pdc
setup with ldap on opensuse 11.4.

The logs give this:

[2011/11/05 23:45:23.779300, 0] passdb/pdb_get_set.c:212(pdb_get_group_sid)
pdb_get_group_sid: Failed to find Unix account for S-PC$

But that doesn't make sense because S-PC$ _does_ have a Unix account.

Can anyone help me?

smb.conf is:

[global]
workgroup = hh1
passdb backend = ldapsam:ldap://127.0.0.1
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 = Yes
add machine script = /usr/sbin/useradd -c Machine -d /var/lib/nobody
-s /bin/false %u
domain logons = Yes
domain master = Yes
idmap backend = ldap:ldap://127.0.0.1
ldap admin dn = cn=admin,dc=com
ldap group suffix = ou=group
ldap idmap suffix = ou=Idmap
ldap machine suffix = ou=Machines
ldap passwd sync = Yes
ldap ssl = Off
ldap suffix = dc=com
ldap user suffix = ou=people
local master = Yes
os level = 65
preferred master = Yes
security = user
wins server =
wins support = No
[homes]
comment = Home Directories
valid users = %S, %D%w%S
browseable = No
read only = No
inherit acls = Yes
[profiles]
comment = Network Profiles Service
path = %H
read only = No
store dos attributes = Yes
create mask = 0600
directory mask = 0700
[users]
comment = All users
path = /home
read only = No
inherit acls = Yes
veto files = /aquota.user/groups/shares/
[groups]
comment = All groups
path = /home/groups
read only = No
inherit acls = Yes
[printers]
comment = All Printers
path = /var/tmp
printable = Yes
create mask = 0600
browseable = No
[print$]
comment = Printer Drivers
path = /var/lib/samba/drivers
write list = @ntadmin root
force group = ntadmin
create mask = 0664
directory mask = 0775

[netlogon]
comment = Network Logon Service
path = /var/lib/samba/netlogon
write list = root
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