--- includes/common.inc.old	2008-03-28 18:41:22.000000000 -0400
+++ includes/common.inc	2008-03-28 18:41:05.000000000 -0400
@@ -3515,6 +3515,7 @@ function drupal_flush_all_caches() {
 
   drupal_clear_css_cache();
   drupal_clear_js_cache();
+  system_theme_data();
   drupal_rebuild_theme_registry();
   menu_rebuild();
   node_types_rebuild();