Guys Installed public beta 2 over public beta 1. Macbook Air went through the whole update process and when it came back I simply cannot log in. It accepts my password and the screen dims to black as it normally does before it comes back with the main screen but instead it returns to the login page. If I try another password it shakes the login bar to say it's the wrong password so it is definitely accepting my password. I have zero idea what this could be. Can anyone suggest a fix? Kman --- Post Merged, Jul 20, 2016 --- Tried changing my password at appleid jic it was related. Computer accepts the new password and does exactly the same thing. Arrrg This will teach me to not install Betas on my main machine !!~!!