Have used Tbird with my TTalk account for years. On previous re-installs of Win10, TT password has always been tricky- I seem to remember something about a Certificate having to be changed. Anyway that was then. Now, after numerous attempts, including changing TT password, Tbird is stubbornly refusing to acknowlege the TT password, which works fine to give direct access on the TT email site. My user name and all the incoming and outgoing server settings are fine and reecognised by Tbird on attempted import of my TT account. It is just the Password- Tbird tries in vain to recognise it on this final part of the import set up, and eventually it gives a message saying that the password appears incorrect. Which of course it isn't. Any ideas gratefully received. Thanks.