Yesterday, I freshly installed Ubuntu 12.04 and it worked fine, but today when I booted the computer something strange happened. The Unity Launcher disappeared!
Any help would be appreciated.
You need to launch CCSM and make sure that Enable Ubuntu Unity Plugin is ticked.
If you don't have CCSM installed, do the following:
Press Ctrl+Alt+T to launch the Terminal.
Type the following command and press Enter
sudo apt-get install compizconfig-settings-manager
Now, launch CCSM by running this command from the Terminal:
sudo ccsm
In the CCSM window, select Desktop → Ubuntu Unity Plugin.
In the next window, make sure Enable Ubuntu Unitu Plugin is checked.
