Restart the USR and RadiusNT. That should clear out the records in the USR.
If you are still having problems, send support your -x15 debug of the problem.
-- Dale E. Reed Jr. (daler@iea.com)_________________________________________________________________ IEA Software, Inc. | RadiusNT, Emerald, and NT FAQs Internet Solutions for Today | http://www.iea-software.com