diff -r 5841df0ab575 -r dffcbfbc4e59 includes/clientside/tinymce/plugins/compat2x/editor_plugin_src.js
--- a/includes/clientside/tinymce/plugins/compat2x/editor_plugin_src.js	Mon May 05 20:06:37 2008 -0400
+++ b/includes/clientside/tinymce/plugins/compat2x/editor_plugin_src.js	Mon May 05 20:08:44 2008 -0400
@@ -559,6 +559,9 @@
 			translate : function(s) {
 				var c = this.settings.language, o;
 
+				if (!s)
+					return s;
+
 				o = tinymce.EditorManager.i18n[c + '.' + s] || s.replace(/{\#([^}]+)\}/g, function(a, b) {
 					return tinymce.EditorManager.i18n[c + '.' + b] || '{#' + b + '}';
 				});