Index: wp-includes/css/admin-bar.dev.css
===================================================================
--- wp-includes/css/admin-bar.dev.css	(revision 19148)
+++ wp-includes/css/admin-bar.dev.css	(working copy)
@@ -205,9 +205,6 @@
 #wpadminbar .ab-top-menu > li > a:hover span {
 	color: #fafafa;
 }
-#wpadminbar .ab-top-menu > li > a:hover span {
-	background: url(../images/admin-bar-sprite.png?d=11122010) right -57px no-repeat;
-}
 #wpadminbar.nojs .ab-top-menu > li > a:hover span,
 #wpadminbar .ab-top-menu > li.hover > a:hover span {
 	background: none;