\melissa@centaur:~$ sudo dpkg -r xorg-driver-fglrx
dpkg: dependency problems prevent removal of xorg-driver-fglrx:
 xserver-xorg depends on xserver-xorg-video-all | xserver-xorg-video; however:
  Package xserver-xorg-video-all is not installed.
  Package xserver-xorg-video is not installed.
  Package xorg-driver-fglrx which provides xserver-xorg-video is to be removed.
 xserver-xorg-core depends on xserver-xorg-video-all | xserver-xorg-video; however:
  Package xserver-xorg-video-all is not installed.
  Package xserver-xorg-video is not installed.
  Package xorg-driver-fglrx which provides xserver-xorg-video is to be removed.
dpkg: error processing xorg-driver-fglrx (--remove):
 dependency problems - not removing
Errors were encountered while processing:
 xorg-driver-fglrx
melissa@centaur:~$