Possible Duplicate:
Unity doesn't load, no Launcher, no Dash appears
I am using Ubuntu 11.04. Last time I just installed Compiz and ccsm from the Software Centre. After I opened it, I made some common changes and then reset to defaults. But then my complete panel (as well as my dock) had disappeared, and after rebooting it was still gone. I also tried deleting the .config file for Compiz, and using commands to restore GNOME.
