i think i installed my nvidia driver, but now i have no menues, hud, or dash

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http://askubuntu.com – i have ubuntu 12.10 and ive been very painfully trying to figure out how to install my Nvidia drivers. online i raed to do this: "sudo add-apt-repository ppa:ubuntu-x-swat/x-updates sudo apt-get updates sudo apt-get install nvidia-current" i did that and restart and now i have no menues, HUD, dash or anything, just my desktop wallpaper and a handfull of icons i left on the desktop. how do i fix this? (HowTos)