Possible Duplicate:
Unity doesn't load, no Launcher, no Dash appears
unity 2d is working fine, but nothing is displayed( except wallpaper) using unity 3d. I have tried unity --reset, but it indicated : unity-panel services : no such process
I have already purges and reinstalled unity-services.
Also I have checked the Unity plugin option in ccsm, but it goes 'uncheck' after every restart.