I logged into my Trello app with Google after an upgrade and created a new account by mistake. I have already got an account but have changed my browser so my login details were not available and I wasn't sure how I had logged in before. I have now deleted the Google account, but my iMac app will not give me a sign in screen. I want to be able to sign out & back in again with my real account so I can see my data. How do I do that? I have already deleted the app from my Mac and re-downloaded it but that didn't work! Help please?