Sorry Mario but after rebooting yesterday everything was upgraded. Mythtv was broken afterwards in regard to being unable to connect to mysql-server but this may have been due to my inadvertently selecting the new version of '/etc/mysql/my.cnf'. I'm not sure, I'm pretty new to Ubuntu (and Linux).
Thanks ... Paul -- "Could not install the upgrades" - installArchives() failed https://launchpad.net/bugs/68400 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs