Fedora directory users - Jun 2008 - Password Sometimes Replicated in Windows Sync

Here''s an odd one.  We have a Windows Sync agreement between Fedora
Directory
1.04 and Active Directory.  If we change a user''s password on the
domain
controller, the password is replicated to Fedora Directory.  But if we change 
the user''s password on the user''s Windows XP computer using
Ctrl-Alt-Del, the
change is not replicated.  Anyone got a solution to this?  It was working a 
few months ago.  Thanks.   -G.