[Lynne]

Look at your showthread template and see where $pagenav is defined (middle of the page) relative to the $navbar (near the bottom) - it's defined before it. Look at the forumdisplay.php page and look at where $pagenav is defined (bottom of the page) relative to the $navbar (top of the page) - it's defined after it. If you want to use $pagenav in the $navbar template, it needs to be defined before it.