New Version of Lightening. Rated 3 out of 5 stars
When you install a new version of Lightening, Thunderbird says that you have to restart the application. Normally lately you have to completely restart the computer to have the application function correctly. This has been a requirement for the past few update versions (07/30/2012). After you complete the new installation your can just wait and after you actually restart the computer it will work OK. If you restart Thunderbird only, the calender will not work correctly. Just be aware of this inconsistency, since formerly it would be OK after a restart of just the program itself.This review is for a previous version of the add-on (1.6).