Thunderbird
On clicking on shortcut got "You have launched an older version etc" I didn't know I had more than one! Find I cannot get Tb any other way than downloading fresh copy. Have now lost all of calendar, and Tb now has "calendar" listed on left side, but no calendar present. How to get? Would it be a good idea to have the calendar stored somewhere separately so it can't be lost this way??
Regards, David