I used this http://www.webupd8.org/2011/10/how-to-move-unity-launcher-to-bottom-of.html and when I restarted computer, launcher, panel and skype window showed for 1-2 seconds (launcher was on bottom) and disappeared.
I tried restart the computer, but this did not help. I set autologin, so I can't switch to Unity 2D. I tried ctrl+alt+backpace to log out, but nothing happened.
I don't want to reinstall system, because there are important files in home folder, and if I don't format
/home partition all my settings will stay and I still have this problem.
How to fix it?