Index: includes/bootstrap.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/bootstrap.inc,v
retrieving revision 1.241
diff -u -p -r1.241 bootstrap.inc
--- includes/bootstrap.inc	22 Oct 2008 20:44:53 -0000	1.241
+++ includes/bootstrap.inc	24 Oct 2008 19:13:00 -0000
@@ -347,7 +347,7 @@ function conf_path($require_settings = T
   }
 
   $uri = explode('/', $_SERVER['SCRIPT_NAME'] ? $_SERVER['SCRIPT_NAME'] : $_SERVER['SCRIPT_FILENAME']);
-  $server = explode('.', implode('.', array_reverse(explode(':', rtrim($_SERVER['HTTP_HOST'], '.')))));
+  $server = explode('.', implode('.', array_reverse(explode(':', strtolower(rtrim($_SERVER['HTTP_HOST'], '.'))))));
   for ($i = count($uri) - 1; $i > 0; $i--) {
     for ($j = count($server); $j > 0; $j--) {
       $dir = implode('.', array_slice($server, -$j)) . implode('.', array_slice($uri, 0, $i));