"I hear no sound when new mail arrives in Thunderbird and only occasionally will the new mail envelope change colr when new mail arrives. I have tried both the default audio notification sound as well as my own .wav files."
Ditto. That is exactly the same problem I have. Everything was working fine in 11.10. The problem only occurred after upgrading to 12.04 via the Software Updater. It's very annoying not knowing when I have new mail. Also (this may help to narrow down the problem) I have a similar problem with Choqok (a Twitter client, available from the Ubuntu Software Centre). A sound plays when a new tweet arrives, but the Choqok icon in the top panel is no longer visible (so doesn't change colour) and the Ubuntu notification envelope does not change colour, as it used to in 11.10. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/992981 Title: thunderbird audio and visual notifications don't work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/992981/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs