Index: wp-admin/css/login.dev.css
===================================================================
--- wp-admin/css/login.dev.css	(Revision 17943)
+++ wp-admin/css/login.dev.css	(Arbeitskopie)
@@ -86,8 +86,12 @@
 	left: 0;
 	border-bottom: #c6c6c6 1px solid;
 	background: #d9d9d9; /* fallback color */
-	background: -moz-linear-gradient(bottom,  #d7d7d7,  #e4e4e4);
-	background: -webkit-gradient(linear, left bottom, left top, from(#d7d7d7), to(#e4e4e4));
+	background-image: -ms-linear-gradient(bottom, #D7D7D7 0%, #E4E4E4 100%);
+	background-image: -moz-linear-gradient(bottom, #D7D7D7 0%, #E4E4E4 100%);
+	background-image: -o-linear-gradient(bottom, #D7D7D7 0%, #E4E4E4 100%);
+	background-image: -webkit-gradient(linear, left bottom, left top, color-stop(0, #D7D7D7), color-stop(1, #E4E4E4));
+	background-image: -webkit-linear-gradient(bottom, #D7D7D7 0%, #E4E4E4 100%);
+	background-image: linear-gradient(bottom, #D7D7D7 0%, #E4E4E4 100%);
 	height: 30px;
 	width: 100%;
 }