Index: wp-admin/includes/dashboard.php
===================================================================
--- wp-admin/includes/dashboard.php	(revision 21591)
+++ wp-admin/includes/dashboard.php	(working copy)
@@ -364,7 +364,7 @@
 
 	if ( $theme->errors() ) {
 		if ( ! is_multisite() || is_super_admin() )
-			echo '<span class="error-message">' . __('ERROR: The themes directory is either empty or doesn&#8217;t exist. Please check your installation.') . '</span>';
+			echo '<span class="error-message">' . $theme->errors()->get_error_message() . '</span>';
 	} elseif ( ! empty($wp_registered_sidebars) ) {
 		$sidebars_widgets = wp_get_sidebars_widgets();
 		$num_widgets = 0;