Index: class.wp-styles.php
===================================================================
--- class.wp-styles.php	(revision 20564)
+++ class.wp-styles.php	(working copy)
@@ -68,7 +68,12 @@
 		$end_cond = $tag = '';
 		if ( isset($obj->extra['conditional']) && $obj->extra['conditional'] ) {
 			$tag .= "<!--[if {$obj->extra['conditional']}]>\n";
-			$end_cond = "<![endif]-->\n";
+			if ( strstr( $obj->extra[ 'conditional' ], '!IE' ) ) {
+					$tag .= '<!-->';
+					$end_cond = '<!--';
+			}
+			$tag .= "\n";
+			$end_cond .= "<![endif]-->\n";
 		}
 
 		$tag .= apply_filters( 'style_loader_tag', "<link rel='$rel' id='$handle-css' $title href='$href' type='text/css' media='$media' />\n", $handle );
@@ -168,4 +173,3 @@
 		$this->print_html = '';
 	}
 }
-