Index: wp-admin/admin-header.php
===================================================================
--- wp-admin/admin-header.php	(revision 18660)
+++ wp-admin/admin-header.php	(working copy)
@@ -119,9 +119,9 @@
 <?php
 
 if ( is_network_admin() )
-	$blog_name = sprintf( __('%s Network Admin'), esc_html($current_site->site_name) );
+	$blog_name = sprintf( __('Network Admin: %s'), esc_html($current_site->site_name) );
 elseif ( is_user_admin() )
-	$blog_name = sprintf( __('%s Global Dashboard'), esc_html($current_site->site_name) );
+	$blog_name = sprintf( __('Global Dashboard: %s'), esc_html($current_site->site_name) );
 else
 	$blog_name = get_bloginfo('name', 'display');
 if ( '' == $blog_name ) {