I observed this bug in the previous LTS release (12.04?) and I confirm it is still here in Ubuntu 14.04.1 (Thunderbird 31.2.0).
System details: x86_64 nvidia graphics, nouveau driver KDE enviroment Happened in both Thunderbird and Firefox in Ubuntu 12.04. Under 14.04.1, I observed this bug in Thunderbird but not (yet?) in Firefox. Don't know how to reproduce it reliably, but it happens sufficiently often to be annoying. When it happens, I usually force a window refresh by switching to another (fullscreen) window and back. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1301225 Title: Parts of Text disappear in Firefox and Thunderbird Editors /Text Areas To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1301225/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs