samba - Oct 2013 - sambaPwdLastSet and sambaPwdMustChange - major issue

Hi There, 

I have setup the following SAMBA + LDAP, Domain Controller, with
smbldap-tools-0.9.8

SLES - 11.2 (For Samba, Separate System)
samba-3.6.3-0.18.3

SLES - 10 (For LDAP Backend, Separate System)
openldap2-2.3.19-18.7

The above setup is working fine and the password policies are all fine.  

Problem - If the user changes the password at the Windows Client sambaPwdLastSet
changes date to the new date
but the sambaPwdMustChange does not change to the next date, ie (sambaPwdLastSet
+ 90 Days).

If the password is set in the command line by the administrator then everything
is fine.

How do I fix this issue, Please advise.

Thanks
AVIN