I installed the Atlantis transparent cube plug in and now all i have on my screen are folders and fish. I cant open a terminal with ctr alt T and i cant open the run dialogue box with alt F2. I also cant get ctr alt F1 to do what i need (unity --reset). I have tried everything that i can think of and nothing is working. I have been using the computer in guest mode but i cant do this forever, at least i hope not.
You have to delete your compiz config file.
Open a virtual console:
stop the login manager:
delete your compiz settings:
log into ubuntu again.
If your aim is to open ccsm then simply open a folder on your Desktop & browse to /usr/share/applications.
Double left click on the Compizconfig Settings Manager icon.
If in similar with no folders on the Desktop then right click > create one, ect.
If you have another DE such as gnome shell you can configure compiz(by pressing reset button in preferences) from it and re-log to Unity read this also.