Index: trunk/admin/install.php
===================================================================
diff -u -N -r2194 -r2536
--- trunk/admin/install.php	(.../install.php)	(revision 2194)
+++ trunk/admin/install.php	(.../install.php)	(revision 2536)
@@ -7,7 +7,7 @@
 $general_error = '';
 
 $pathtoroot = "";
-if(!strlen($pathtoroot))
+if( !(isset($pathtoroot) && $pathtoroot) )
 {
   $path=dirname(realpath(__FILE__));
   //$path=dirname(realpath(__FILE__));
@@ -51,7 +51,7 @@
 	  $p = "";
       }
     }
-    if(!strlen($pathtoroot))
+    if( !(isset($pathtoroot) && $pathtoroot) )
       $pathtoroot = ".".$pathchar;
   }
   else