Just thought I'd say that samba4 is working quite nicely. Samba4 DC on Ubuntu server. Added a W2k3R2 and W2k8R2 server as DC's. Took a little bit of play to get it done, but not much. The only thing I've noticed so far (still in early lab stage) is a GC issue. Now if I can upgrade a Samba3-LDAP domain.... Cheers, TMS III