I don't know how my dock and files got hidden but I sure want them to get unhidden. I've tried to click on the dock and the first option but that won't work. I tried going to dock preferences to switch things around but every time I close it and come back to it it will go back to the original. My top bar as well is hidden but the only way I can see it is if i plug in my ipod or click on the play and pause. But I'm limited to what I can click. Some of the options are frozen and some that aren't frozen won't work.