Calender inop on TB19 Rated 1 out of 5 stars

I have one computer with TB18 where the Calendar works OK, and unfortunately the other one is TB19 where calendar is inoperative. I will not go back to updating in the beta channel until they get this resolved. I have calendar become inoperative many times when the version was updated, but this has been almost a week. What is the matter with the people at Mozilla, don't they realize the people actually depend on these applications. Almost anything else could be inoperative and there would be a work around, but one of the reasons that I have stuck with Thunderbird is for the calendar.

This review is for a previous version of the add-on (1.9). 

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).