Hi, I have Lightning installed and hooked up to two Google Calendars, one for actual events (both work and personal) and one for things like local holidays and week numbers (this is a read-only calendar Google's put together). My issue is that I can't create a new event on my personal calendar through Thunderbird. I can open the "create new event" dialog box no problem, and fill in all the details, but when I hit "Save and Close" nothing happens - the dialog box stays open, and no event is created. I can create events in a 'local' calendar (e.g. the blank "Home" calendar that Lightning comes with as a default). I can log into my Google calendar through my browser and create events no problem, but then hitting the "synchronise" button in Thunderbird doesn't make them show up (although syncing the calendar app on my android phone, linked to the same Google Calendar, makes the new events created through the browser show up no problem). The only other information I can offer is that on the Calendar tab in Thunderbird, on the left of the screen, there's list of the calendars my Thunderbird/Lightning has installed/synchronised: "Home" (a local calendar, basically empty but functioning), "Luke John's Calendar" (Google Calendar, the one I'm having the problem with), and "Week Numbers" (Read-only Google Calendar, I don't know if it's possible to create new events on because it's read only). Next to both "Luke John's Calendar" and "Week Numbers" are little (error?) symbols: black exclamation marks in yellow triangles, which give the rollover text "The Calendar [name] is momentarily not available." Any suggestions for sorting this out? I'd be very grateful!