Acrobat 6.01/Win -- InDesign CS to Acrobat using Export for Print. The publication is B/W.

A black line behind the page numbers is "correctly" blocked out on-screen ID CS and also when I print to a PS printer from the PDF, but the line is "incorrectly" visible behind the page number (runs right through it) in the on-screen PDF.

The page numbers and lines are on master pages. The page number style has a 7pt rule, set to "paper", centered behind the number to block out the line behind the page numbers. I can't set the rule to white since it's a one-color publication.

I'm concerned about what will happen at the printers and also that I need to publish a PDF of the document. This did not occur in ID2.01 with Acrobat 5.

Any ideas as to what is happening or a solution?

Thanks!