my desktop went away. and I couldn't access any program. and I just see the purple screen. the only thing I could do is to open the home. plus i couldn't access the terminal Ctrl+alt+T is not working , how should I overcome this issue and what happenend ? thank you inadvance
ps : I run ubuntu 14.04 in vmware machine
Edit : this link was not resolved my problem because unity plugin was not appearing in the compizconfig and the problem was due to deleting python package.