SQL Error on Previewing a new Book Page
						Create a new Page on a Book, then Preview = SQL error
						
						
						
						On a given Book
Add a new Page
Click "Preview" on the new Page
... results in SQL crash like so
	Code:
	Invalid SQL:
SELECT displayorder FROM `vw_chapterorder` WHERE pageid =;
MySQL Error   : You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1
Error Number  : 1064