Gutsy was EOL in April 2009. Could you please verify that you are using a supported version of Ubuntu (8.04 and up) and that you are still experiencing this issue. This worked for me in Thunderbird 2.0.0.23 in Karmic and Jaunty as well.
** Changed in: thunderbird (Ubuntu) Status: Confirmed => Incomplete -- signature under the response https://bugs.launchpad.net/bugs/211337 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs