diff -Naur mate-conf-editor-1.2.0-old//src/mateconf-editor-window.c mate-conf-editor-1.2.0/src/mateconf-editor-window.c
--- mate-conf-editor-1.2.0-old//src/mateconf-editor-window.c	2012-03-12 15:12:08.000000000 +0200
+++ mate-conf-editor-1.2.0/src/mateconf-editor-window.c	2012-04-02 23:08:55.142702855 +0300
@@ -352,7 +352,7 @@
         GError *error = NULL;
 
 	gtk_show_uri (gtk_widget_get_screen (callback_data),
-		      "ghelp:mateconf-editor", gtk_get_current_event_time (), &error);
+		      "http://mate-desktop.org/", gtk_get_current_event_time (), &error);
                                                                                 
         if (error != NULL) {
                 mateconf_editor_window_popup_error_dialog (GTK_WINDOW (MATECONF_EDITOR_WINDOW (callback_data)),