Index: themes/bartik/css/style.css
===================================================================
RCS file: /cvs/drupal/drupal/themes/bartik/css/style.css,v
retrieving revision 1.22
diff -u -r1.22 style.css
--- themes/bartik/css/style.css	5 Oct 2010 01:48:11 -0000	1.22
+++ themes/bartik/css/style.css	6 Oct 2010 17:18:32 -0000
@@ -463,6 +463,7 @@
   background: rgba(255, 255, 255, 1);
 }
 #main-menu-links li a.active {
+  background: rgba(255, 255, 255, 0.95);
   border-bottom: none;
 }
 .featured #main-menu-links li a.active,