This can be closed. I found a workaround at http://askubuntu.com/questions/584922/how-do-i-fix-fonts-not-rendering- and-missing-letters.
The bug is described here: https://bugs.freedesktop.org/show_bug.cgi?id=88584 ** Bug watch added: freedesktop.org Bugzilla #88584 https://bugs.freedesktop.org/show_bug.cgi?id=88584 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1612917 Title: Parts of words are hidden in Thunderbird To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1612917/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
