Sorry, I didn't clarify my issue.  I can print other pdfs cleanly.  It's only the pdf copies created by ProSeries that experience the streaking problem.  I often scan and create a pdf using a program called ScanToPDF.  I also receive pdf documents from clients by email.  Additionally I scan client pdf document s into E-File Cabinet.  Any of these pdfs can be opened and printed without any printing problems.  But if I use the print function within ProSeries to create a pdf, and save it to a file on my computer, then open it later using Adobe Reader XI and attempt to print, streaks appear on the printed copy.  It's baffling since it seems to only occur on ProSeries created pdfs.