diff --git a/wp-includes/comment-functions.php b/wp-includes/comment-functions.php
index 227697a04..c62ed97f0 100644
--- a/wp-includes/comment-functions.php
+++ b/wp-includes/comment-functions.php
@@ -513,7 +513,7 @@ function discover_pingback_server_uri($url, $timeout_bytes = 2048) {
 
 	// Send the GET request
 	$request = "GET $path HTTP/1.1\r\nHost: $host\r\nUser-Agent: WordPress/$wp_version PHP/" . phpversion() . "\r\n\r\n";
-	ob_end_flush();
+//	ob_end_flush();
 	fputs($fp, $request);
 
 	// Let's check for an X-Pingback header first
diff --git a/wp-includes/functions-post.php b/wp-includes/functions-post.php
index 87c9e1a9a..f79be3e3c 100644
--- a/wp-includes/functions-post.php
+++ b/wp-includes/functions-post.php
@@ -155,9 +155,9 @@ function wp_insert_post($postarr = array()) {
 	if ($post_status == 'publish') {
 		do_action('publish_post', $post_ID);
 		if ($post_pingback)
-			pingback($post_content, $post_ID);
-		do_enclose( $post_content, $post_ID );
-		do_trackbacks($post_ID);
+			register_shutdown_function('pingback', $content, $post_ID);
+		register_shutdown_function('do_enclose', $content, $post_ID );
+		register_shutdown_function('do_trackbacks', $post_ID);
 	}	else if ($post_status == 'static') {
 		generate_page_rewrite_rules();