I lost power to my PC when Thunderbird was running (thanks electrician who tripped the whole fusebox!). Since then despite everything I have tried Thunderbird will not open my mailbox. I get the screen 'Set Up Your Existing Email Address' shown in the screenshot. I can see my address book. I have tried creating a new profile, copying across all the data from the profile in use until yesterday and changing the profiles.ini to point to the new profile. If I start using the profile manager (thunderbird -p) it shows the new profile but if I click it then I still get the same screen shown in the screenshot. After looking at other support pages I tried deleting the .lock files and rebooting, still the same. Under the troubleshooting information I can see the correct profile folder and open it, if I click about::profiles then the correct profile is in use. It is a bit more complicated as I had the profile on a NAS drive but I have created a new profile on the PC and copied all the data in the profile directory to the local profile folder. Still the same results. Edited: After trying a couple of other things - import into a new profile from the currant one, still same results, and changing the installs.ini file to match the profiles.ini one, also same results, I have uploaded a couple more pictures after looking again at other support questions. I am on version 115.10.1 (32-bit) Thanks for any help.