Index: trunk/admin/save_redirect.php
===================================================================
diff -u -r1566 -r2536
--- trunk/admin/save_redirect.php	(.../save_redirect.php)	(revision 1566)
+++ trunk/admin/save_redirect.php	(.../save_redirect.php)	(revision 2536)
@@ -58,7 +58,7 @@
 					$p = "";
 				}
 			}
-			if(!strlen($pathtoroot))
+			if( !(isset($pathtoroot) && $pathtoroot) )
 			$pathtoroot = ".".$pathchar;
 		}
 		else