slapd 2.2.26-5ubuntu2.1 was released for dapper-security (repository). Make sure your /etc/apt/sources.list doesn't contain any Dapper repositories, update package lists with apt-get/aptitude and try to install slapd again.
-- slapd won't install in edgy https://launchpad.net/bugs/64088 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
