@John Hersey: You can solve this problem with sudo apt-get install cups-pdf (or the package in you distro). Then configure a new printer (with cups or Printer options).
The new pdf printer will appear in the list of printers of briscad.
@elmer gato: you have to purge bricscad with #sudo apt-get purge bricscadv10
then find all the bricscad files in your system, for example whit #sudo locate bricscad , and reinstall the program.
I have the same problem when i was trying to configure …