My guess is there are posts about this over on the vbportal site. But, basically, when you do a link like "thispage.php", then it is relative to where you currently are. in the case of being on your portal page, that means it tries to go to "http://www.reef2reef.com/modules/Jig/thispage.php". One way to fix this is to change the path to be relative to the home root, which means going "/forums/thispage.php" What method is being used for the other links in the navbar because they all seem to be correct.