[support] Can I prevent user from changing his password?

Hi All, Sorry if this is a FAQ - I spent some time looking for an answer. I have a D5 site that allows users to register. Of course, they get (what looks to me like) a strong password back vie e-mail. I found where I can keep them from changing their login name, but I have not found how to prevent them from changing their password to a weak password. Is this possible? Thanks, -- Bob Smither <Smither@C-C-I.com>