I tried this on my iMac and am a noob, so disaster was right around the corner! I copied and pasted in the command from the 3rd site and boom my dock has gone and wont show up again, I have relaunched finder, had to do a had restart and it still doesn't appear please Help me fix it! I'm so stupid, I followed the links in this thread and must have done something wrong, terribley wrong, I deleted my Dock!!! I don't know how I have restarted finder, reinstalled OSX and still no dock in the account in which I did it in! So sad right now I don't know how to fix it so please, please help me! I promise I will never touch Terminal again! Thanks for all your help in advance. Oh and by the way not only will the dock not appear but the applications windows won't only finder and and system references will show but program windows as such don't appear??? Help me please!