I had been happily using Tbird for many years. In mid February, when I tried to open my inbox, the message was "inbox in use for some other operation". If it was in use, I did not know about it. Then the message changed to "Thunderbird has crashed". I tried again many times over a few months but got the same results. I've just about been coping using webmail but with much grinding of teeth. Today when I tried again, there was no message and no inbox. I've also tried opening a 2nd Tbird account but got nowhere. Does anyone have any suggestions please? Thanks, Richard>