I have been running Thunderbird with Lightning on my laptop, with recent upgrade to 11.4.
KDE 4.6.3, Tbird is 3.1.10, Lightning 1.0b2

The calendar in Tbird(provided by the lightning add-on) is misbehaving. The calendar view is stuck on Day (even with month selected), New calendar add function does not work and events won't add.

Anyone with similar issues, or better yet, suggestions?

I have tried Tbird 3.1.7, 3.8.8 and 3.1.10, with similar results.