Is there a way in Reader 10 to hide the Navigation Panel, that thing on the left side of a document, by default? I know once opened, I can right-click and "hide navigation panel" but I can't seem to find anything in preferences to do this by default as it's quite annoying. Seems to open in EVERY pdf incl. ones I create, so it can't just be set that way by author. I don't recall this behavior always happening in previous versions but then again, my memory may be faulty.