samba - Sep 2004 - ACL's are lost when upgrading from Samba 3.0.4 to 3.0.7

I'm running Samba 3.0.4 on Sparc/Solaris 8 as a member server in a 
Windows 2003 Domain. I'm using kerberos5 1.3.1 as supposed when running
with security = ADS in the smb.conf.

When I upgraded Samba I lost all of my ACL settings, why?

I didn't leave the domain, just shut samba down, changed version
from 3.0.4 to 3.0.7 and started up again.