[K12OSN] can t join domain..Help

[cliebow midmaine com]

i undertook to change ldap master pw yesterday..saving first
/etc/ldap.conf /var/lib/samba /etc/ldap.secret /etc/samba/secrets.tdb..Had
trouble getting windows to mount desktop and documents from
fileserver..just before the sirens started going off,,i bailed and put
those configs back in place..everything works perfectly EXCEPT..can no
longer join new machines to the domain..
ive used smbpasswd -w to replace secrets.tdb..also used original
secrets.tdb to no avail..Can anyone shine a light on this perplexing
problem???chuck