When I try to add a new task with Lightning, there is no option in New Task window's "Calendar:" field to select my Google Calendar. It only shows the local "Home" calendar as the lone option. Because of this, any tasks I create in Thunderbird do not sync to my Google Calendar and don't show up on my other devices. Finally, I deleted the local "Home" calendar to see if that would force something, but now whenever I try to create a new task, nothing happens at all. Any help with this would be much appreciated!