I'm reading a section of the ESVSB (article on the OT prophets, starting on page 1229) and I have columns set to Auto. It gives me three columns so I read away with no trouble. But when I advance to where I'm seeing content from pages 1231 and 1232, it shows no columns. I can't make it show columns at that point. The setting still shows Auto, but no go. I can back up a page and switch to three columns and it works fine. Go back to this point, no columns. There is no special content on that page - charts, etc (though one does come up on the next page) so I'm not sure what would keep it from showing multiple columns.