Chap,LDAP and Passwords :)

Greetings!, Please forgive me if this has already been asked. I have googled around as well as checking out a few how-to's. Currently. I have a poptop server, authenticating via freeradius to openldap. Everything appears to be functioning correctly with pap based authentication. However, if I turn on CHAP based authentication I get a message from the radius server that USER-PASSWORD is a required attribute. Looking at the packet I dont actually see the user password from the pptp server being sent. So suspect the issue might be with the radius plugin. Any ideas? I am going to try another radius plugin I found today on sourcegforge to try and narrow it down. Thanks!, Liz