Index: wp-includes/formatting.php
===================================================================
--- wp-includes/formatting.php	(revision 11263)
+++ wp-includes/formatting.php	(working copy)
@@ -120,8 +120,8 @@
 	$pee = preg_replace('|<br />\s*<br />|', "\n\n", $pee);
 	// Space things out a little
 	$allblocks = '(?:table|thead|tfoot|caption|col|colgroup|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|select|form|map|area|blockquote|address|math|style|input|p|h[1-6]|hr)';
-	$pee = preg_replace('!(<' . $allblocks . '[^>]*>)!', "\n$1", $pee);
-	$pee = preg_replace('!(</' . $allblocks . '>)!', "$1\n\n", $pee);
+	$pee = preg_replace('!(<' . $allblocks . '[^>]*>)!', "\n\n$1\n\n", $pee);
+	$pee = preg_replace('!(</' . $allblocks . '>)!', "\n\n$1\n\n", $pee);
 	$pee = str_replace(array("\r\n", "\r"), "\n", $pee); // cross-platform newlines
 	if ( strpos($pee, '<object') !== false ) {
 		$pee = preg_replace('|\s*<param([^>]*)>\s*|', "<param$1>", $pee); // no pee inside object/embed