[ubuntu] Ubuntu 11.10 Unity side bar and top bar missing.

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http://ubuntuforums.org – Hello, i dont know how this happened, im relatively new to Ubuntu so im not good at using it. I was using compiz so that my side bar would pop up faster because i didnt like waiting for so long. then i was messing around with some other stuff, i saw this cube thing and that looked interesting, but then decided i didnt want it. When i clicked on it, two popups appeared, i was ignorant and didnt read them, and clicked no to both of them... This was while i was updating. Then i realized that my bars were missing. the side bar where the application and start button was missing. Also at the (Hardware)