user error: Duplicate entry '2' for key 1
(16:28:01) mozillaman: query: INSERT INTO phplist_user_user (id, email, uniqid, drupalid, disabled, confirmed, htmlemail) VALUES (2, 'robin@civic.....labs.org', '837ec5754f503cfaaee0929fd48974e7', 1, 0, 1, 1) in /e...nk/includes/database.mysql.inc on line 66.

Robin is reporting an error with CiviCRM 1.3 and mass mailer.

Kieran