Preparing to unpack .../csh_20110502-2ubuntu2_amd64.deb ...
Unpacking csh (20110502-2ubuntu2) ...
Processing triggers for man-db (2.6.7.1-1ubuntu1) ...
dpkg: error processing package qtchooser (--configure):
 package is in a very bad inconsistent state; you should
 reinstall it before attempting configuration
Setting up csh (20110502-2ubuntu2) ...