Index: wp-admin/includes/misc.php
===================================================================
--- wp-admin/includes/misc.php	(revision 12531)
+++ wp-admin/includes/misc.php	(working copy)
@@ -259,13 +259,14 @@
  * @param unknown_type $message
  */
 function show_message($message) {
-	if( is_wp_error($message) ){
-		if( $message->get_error_data() )
+	if ( is_wp_error($message) ) {
+		if ( $message->get_error_data() )
 			$message = $message->get_error_message() . ': ' . $message->get_error_data();
 		else
 			$message = $message->get_error_message();
 	}
 	echo "<p>$message</p>\n";
+	flush();
 }
 
 function wp_doc_link_parse( $content ) {