Index: wp-includes/functions-formatting.php
===================================================================
--- wp-includes/functions-formatting.php	(revision 3243)
+++ wp-includes/functions-formatting.php	(working copy)
@@ 17 @@
			$curl = str_replace('xn–', 'xn--', $curl);
			$curl = str_replace('...', '…', $curl);
			$curl = str_replace('``', '“', $curl);
+			$curl = str_replace('"', '“', $curl);
+			$curl = str_replace('"', '”', $curl);
+			$curl = str_replace('‘', '‘', $curl);
+			$curl = str_replace('’', '’', $curl);
+			$curl = str_replace('… ', '…', $curl);
+			$curl = str_replace(' –', '—', $curl);