Printing a postscript file to an external hard drive turned out to be the culprit. Many thanks to all who racked their brains assisting me in wrestling with this nightmare.
-- B a r u c h B r o d e r s e n T e c h n i t e x t D o c u m e n t a t i o n 8 7 7 7 2 1 6 9 8 8
