Comment 3 for bug 145504

I can confirm this bug in the current version of Ubuntu (hardy) & Thunderbird. Frequently (about once a day) thunderbird freezes after downloading IMAP message headers. If I force quit it and start it again, I can load the messages fine.

ezra@ezra-laptop:~/Downloads$ apt-cache policy thunderbird
thunderbird:
  Installed: 2.0.0.14+nobinonly-0ubuntu0.8.04.1
  Candidate: 2.0.0.14+nobinonly-0ubuntu0.8.04.1
  Version table:
 *** 2.0.0.14+nobinonly-0ubuntu0.8.04.1 0
        500 http://security.ubuntu.com hardy-security/main Packages
        500 http://gb.archive.ubuntu.com hardy-updates/main Packages
        100 /var/lib/dpkg/status
     2.0.0.12+nobinonly-0ubuntu1 0
        500 http://gb.archive.ubuntu.com hardy/main Packages