I finally figured out the printing issue with MacOS X and radmind. I had updated the printing configuration files in the loadset, but in one of the overloads I had unintentionally undone two of the PPD files needed for the printing system to know how to print to the printers. The effect, surprisingly enough, was that the printing system would send a raw PDF file to the printer. The printers didn't like this. The Laserwriter just failed, more or less silently, but the Laserjet would spew out page after page of gibberish. I think newer printers will accept raw PDFs.