Index: wp-includes/functions.php
===================================================================
--- wp-includes/functions.php	(revision 3332)
+++ wp-includes/functions.php	(working copy)
@@ -1673,6 +1673,11 @@
 }
 
 function get_template() {
+	$template = get_settings('template');
+	if (!file_exists(get_theme_root() . "/$template")) { //works for dirs too
+		update_option('template', 'default');
+		update_option('stylesheet', 'default');
+	}
 	return apply_filters('template', get_settings('template'));
 }
 
Index: wp-admin/wp-admin.css
===================================================================
--- wp-admin/wp-admin.css	(revision 3332)
+++ wp-admin/wp-admin.css	(working copy)
@@ -754,6 +754,9 @@
 	right: 5%;
 	width: 14.5em;
 }
+#moremeta select {
+	width: 96%;
+}
 
 #slugdiv input, #passworddiv input, #authordiv select, #thumbdiv input, #parentdiv input {
 	margin-top: .5em;