diff -r b55b87e5fafd -r c0724bf6039b includes/plugins.php
--- a/includes/plugins.php	Mon Dec 22 21:25:14 2008 -0500
+++ b/includes/plugins.php	Mon Dec 22 21:26:19 2008 -0500
@@ -623,6 +623,8 @@
     endswitch;
     
     $cache->purge('plugins');
+    $cache->purge('page_meta');
+    $cache->purge('anon_sidebar');
     
     return $return;
   }
@@ -742,6 +744,8 @@
     endswitch;
     
     $cache->purge('plugins');
+    $cache->purge('page_meta');
+    $cache->purge('anon_sidebar');
     
     return $return;
   }
@@ -967,6 +971,8 @@
     endswitch;
     
     $cache->purge('plugins');
+    $cache->purge('page_meta');
+    $cache->purge('anon_sidebar');
     
     return $return;
   }