Today I decideded to update from 10.04 LTS to 12.04 LTS. When I load the 12.04 LTS CD I have no problem seeing unity and making it work. After install though my computer boots straight to a login shell rather than an X window. I tried running startX but it fails. I also tried ALT CTRL F7 which just stays stuck. I am using a standard HP computer with an after market Nvidia Quadro card. Why is the LiVE CD working but an install is broken?