I just had a notification that a new version of Ubuntu pop up today, and after looking at some screen shots, I decided to give it a try. After I installed it and rebooted, the Top and bottom bar are gone, leaving only the desktop. I can use the links on the desktop (that's how I started my browser), but the application's menu is gone. How do I fix it?
EDIT:
If I run unity
from bash, it seems to work alright. There still is no tab bar at the bottom, I don't know if that's normal for unity.