Index: wp-includes/classes.php
===================================================================
--- wp-includes/classes.php	(revision 4144)
+++ wp-includes/classes.php	(working copy)
@@ -621,9 +621,10 @@
 	function start_el($output, $category, $depth, $args) {
 		extract($args);
 	
+		$cat_name = wp_specialchars( $category->cat_name, 1 );
 		$link = '<a href="' . get_category_link($category->cat_ID) . '" ';
 		if ( $use_desc_for_title == 0 || empty($category->category_description) )
-			$link .= 'title="'. sprintf(__("View all posts filed under %s"), wp_specialchars($category->cat_name, 1)) . '"';
+			$link .= 'title="'. sprintf(__("View all posts filed under %s"), $cat_name) . '"';
 		else
 			$link .= 'title="' . wp_specialchars(apply_filters('category_description',$category->category_description,$category),1) . '"';
 		$link .= '>';
@@ -642,12 +643,13 @@
 				$alt = ' alt="' . $feed . '"';
 				$name = $feed;
 				$link .= $title;
-			}
-	
+			} else
+				$alt = ' alt="' . sprintf(__( 'Feed for all posts filed under %s' ), $cat_name ) . '"';
+
 			$link .= '>';
 	
 			if ( !empty($feed_image) )
-				$link .= "<img src='$feed_image' $alt$title" . ' />';
+				$link .= "<img src='$feed_image'$alt$title" . ' />';
 			else
 				$link .= $name;
 			$link .= '</a>';