No Longer can login

[williewonkerz]

I was able to setup and configure MATE to run on the device.   I did a sudo apt-get update,  then I launched MATE, did an update, and then it prompted me to restart.

Now the MATE login is default (doesn't go straight to command line), and it prompts at the GUI for the ubuntu password.   I enter the password and it appears to login, but then kicks itself back out to login.   

I do not get "Incorrect Password"

Any ideas?

I can login as a guest.