It could also be this file. For some reason I have aclu.msf and ACLU.msf , which may be a Thunderbird bug.
** Attachment added: "Possible alternative problem file" http://librarian.launchpad.net/6917433/ACLU.msf -- K3B creates coasters when invalid strings are encountered, and still reports success https://launchpad.net/bugs/95347 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs