I'm sure Eric will correct me if I'm wrong, but I think LISTSERV needs to keep its subscriber lists in node-sorted order so it can efficiently distribute mail and bunch addressees appropriately. If you sort manually and replace, results are not predictable, and even if it survives that, LISTSERV will try to add new users in node sorted order, but I'm kind of skeptical about LISTSERV surviving that kind of abuse in the first place. Sorry, Nick * [log in to unmask] * [log in to unmask]