diff -ru ratpoison/src/actions.c ratpoison/src/actions.c
--- ratpoison/src/actions.c	Thu Feb 15 09:06:46 2001
+++ ratpoison/src/actions.c	Fri Feb 16 14:39:37 2001
@@ -548,8 +548,27 @@
 goto_window_number (void *data)
 {
   int n = (int)data;
+  int o = rp_current_window->number;
+  int s_len;
+  char *s;
 
   rp_window *win;
+
+  if (o == n)
+    {
+      /* Display window list to indicate failure. */
+      /* FIXME: We can always assume there is 1 screen, but which one
+	 is the active one? Need to test on multi-screen x-servers. */
+
+      s_len = strlen(MESSAGE_THIS_IS_WINDOW) + 10 /* n */ + strlen(rp_current_window->name) + 6 /* "   ()." */;
+
+      if(!(s = malloc(s_len + 1)))
+	      return;
+
+      snprintf(s, s_len, "%s%d (%s).", MESSAGE_THIS_IS_WINDOW, o, rp_current_window->name);
+      display_msg_in_bar (rp_current_window->scr, s, 0, 0);
+      return;
+    }
 
   if ((win = find_window_by_number (n)) == NULL)
     {
diff -ru ratpoison/src/messages.h this_is_window/src/messages.h
--- ratpoison/src/messages.h	Thu Feb 15 22:49:44 2001
+++ this_is_window/src/messages.h	Fri Feb 16 13:43:45 2001
@@ -25,6 +25,7 @@
 #include "config.h"
 
 #define MESSAGE_NO_OTHER_WINDOW " No other window "
+#define MESSAGE_THIS_IS_WINDOW " This IS window "
 #define MESSAGE_NO_MANAGED_WINDOWS " No managed windows "
 #define MESSAGE_UNKNOWN_COMMAND ": unknown command "