We recommend upgrading to 6.0.1 LaserWriter and Laser Prep, so that you are
using the most current drivers. You should also have Color/Greyscale
selected in the Print dialog box.
There is a possibility that you are running the Installer (we hope you are
using the Installer) from damaged diskettes. If you have a known-good
locked set, throw away your System Folder and use these good disks to
reinstall by running the Installer.