Q . I'm trying to delete a user, but the option is grayed out - how can i do this.

A . If a user has any work associated with their user name, then you can't because deleting them would create records with no associated user.  Our help file covers the restrictions, as well as a work around. See:

http://www.easyprojects.net/help/easy_projects__net_help/users/deleting_users.htm