Index: includes/install.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/install.inc,v
retrieving revision 1.41
diff -u -p -r1.41 install.inc
--- includes/install.inc	13 Jun 2007 19:39:04 -0000	1.41
+++ includes/install.inc	15 Jul 2007 16:44:29 -0000
@@ -565,6 +565,7 @@ function drupal_install_fix_file($file, 
 function install_goto($path) {
   global $base_url;
   header('Location: '. $base_url .'/'. $path);
+  header('Cache-Control: no-cache'); // Not a permanent redirect.
   exit();
 }