Samba Problem 9.04->9.10

[Sensenseppl]

sudo /etc/init.d/samba status:

 * nmbd is running
 * smbd is running

Furthermore testparm returns:

Load smb config files from /etc/samba/smb.conf
Processing section "[home]"
Processing section "[netlogon]"
Processing section "[profiles]"
Processing section "[public]"
Processing section "[backup]"
Unknown parameter encountered: "create mod"
Ignoring unknown parameter "create mod"
Loaded services file OK.
Server role: ROLE_DOMAIN_PDC
Press enter to see a dump of your service definitions

And smbstatus (with changed username/groupname):

Unknown parameter encountered: "create mod"
Ignoring unknown parameter "create mod"

Samba version 3.4.0
PID     Username      Group         Machine                        
-------------------------------------------------------------------
2815      myuser      mygroup      srvtest      (192.168.111.111)
2816      myuser      mygroup      srvtest      (192.168.111.111)

Service      pid     machine       Connected at
-------------------------------------------------------
home         2815   srvtest       Fri Feb 26 20:41:21 2010
public       2816   srvtest       Fri Feb 26 20:41:23 2010
IPC$         2814   srvtest       Fri Feb 26 20:41:14 2010

[Sensenseppl]

For any people having the same problem:
After migrating smbpasswd to tdbsam (see Configuration Changes: http://www.samba.org/samba/history/samba-3.4.0.html), the Windows XP machines can log in again.

Windows 7 machines join after doing the following:
Adding the machine:
sudo useradd -g mysambagroup -d /dev/null -s /bin/false machinename$ (with the '$'!)
sudo smbpasswd -a -m -i machinename (without the '$'!)

Setting registry entries according to: http://wiki.samba.org/index.php/Windows7

EDIT: Thanks to #ubuntu-server and #samba on freenode!