I am having this problem, as well. My pages have content on them. The content is NOT on the master page. None of the content has the "Nonprinting" box checked in the Attributes dialog.
When selecting all the objects on the page, as Bob suggests, and selecting Overprint Preview, the pages are indeed blank. The page icons in the Pages dialog box are blank, as well.
How do I get the content to appear when printing? Out of 100+ .indd files I work on, this is the only one with this issue. I'm flummoxed.
ID CS5 on a PC running Win7.
Thanks for any help.
Nick.