I have a new computer and have tried to set up a thunderbird email account to access email. I don't want to set up a new account but wish to use existing account. This works fine until i get to nearly the end and I enter my email and password which I know is correct as I can get to email account through browser and I get mssg 'Configuration could not be verified - is user name or password wrong' The account is a secondary account ie set up by our organization administrator.