My friend upgraded his Zorin Desktop with Ubuntu 18.04. Now, at login, he has four desktops to chose from on the login screen:
- Zorin desktop
- Gnome on xorg
- Gnome classic
Choices two, three, and four work AOK. However, if he chooses the first one (Zorin), he's stuck in a loop; he enters his username, and is immediately prompted for his login name again, never reaching the prompt for the password. How may one resolve this problem?