Index: wp-includes/pluggable.php
===================================================================
--- wp-includes/pluggable.php	(revision 7375)
+++ wp-includes/pluggable.php	(working copy)
@@ -953,7 +953,7 @@
  * @return int
  */
 function wp_nonce_tick() {
-	$nonce_life = apply_filters('nonce_life', 86400) / 2;
+	$nonce_life = apply_filters('nonce_life', 86400);
 
 	return ceil(time() / ( $nonce_life / 2 ));
 }
Index: wp-admin/admin-ajax.php
===================================================================
--- wp-admin/admin-ajax.php	(revision 7375)
+++ wp-admin/admin-ajax.php	(working copy)
@@ -520,8 +520,18 @@
 	if ( $do_lock && $id && is_numeric($id) )
 		wp_set_post_lock( $id );
 
-	if ( $nonce_age == 2 )
+	if ( $nonce_age == 2 ) {
 		$supplemental['replace-autosavenonce'] = wp_create_nonce('autosave');
+		$supplemental['replace-getpermalinknonce'] = wp_create_nonce('getpermalink');
+		$supplemental['replace-samplepermalinknonce'] = wp_create_nonce('samplepermalink');
+		$supplemental['replace-closedpostboxesnonce'] = wp_create_nonce('closedpostboxes');
+		if ( $id ) {
+			if ( $_POST['post_type'] == 'post' )
+				$supplemental['replace-_wpnonce'] = wp_create_nonce('update-post_' . $id);
+			elseif ( $_POST['post_type'] == 'page' )
+				$supplemental['replace-_wpnonce'] = wp_create_nonce('update-page_' . $id);
+		}
+	}
 
 	$x = new WP_Ajax_Response( array(
 		'what' => 'autosave',