Index: wp-content/themes/default/functions.php
===================================================================
--- wp-content/themes/default/functions.php	(revision 11877)
+++ wp-content/themes/default/functions.php	(working copy)
@@ -4,6 +4,8 @@
  * @subpackage Default_Theme
  */
 
+$content_width = 450;
+
 automatic_feed_links();
 
 if ( function_exists('register_sidebar') ) {