Just ran some updates, broke system and stuck in Unity 2d

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http://askubuntu.com – I just installed 25 updates. In them were the raring graphics stack and kernel 3.5.25. I rebooted back and noticed I was now in Unity 2d. This behaves much slower than 3d did and when I tried to log out to lightdm the screen went blank blue. I force restarted the computer and am back in fallback. I tried unity --restart however it says it is a deprecated. With the computer in the current state, returning to the log in screen results in a blank screen that matches the color unity inherits from the background. I also noticed gnome control center crashes when trying to enter "display settings". (HowTos)