Dekstop seems to be missing

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http://askubuntu.com – Earlier this week I was looking in Compiz Fusion, and I disabled the assistive zooming setting because I don't really need it, and when I clicked the check box, my window suddenly went full screen. I couldn't exit out of the window, so I restarted my laptop. When I logged back into Ubuntu, all of my Unity settings seem to have disappeared. Is there any way how I could fix this without having to reinstall Ubuntu? (HowTos)