I installed the Atlantis transparent cube plugin and now all I have on my screen are folders and fish.
I can't:
- open a terminal with Ctrl+Alt+T
- open the run dialogue box with Alt+F2
- get Ctrl+Alt+F1 to do what I need (unity --reset)
I have been using the computer in guest mode, but I can't do this forever ...at least, I hope won't need to.