Index: client/gui-gtk-2.0/gui_main.c
===================================================================
--- client/gui-gtk-2.0/gui_main.c	(revision 12251)
+++ client/gui-gtk-2.0/gui_main.c	(working copy)
@@ -463,7 +463,11 @@
     return TRUE;
   }
 
-  if (!client_is_observer()) { /* FIXME: is this check right? */
+  if (client_is_observer()) {
+    return FALSE;
+  }
+  else {
+/*  if (!client_is_observer()) { */   /* FIXME: is this check right? */
     if ((ev->state & GDK_SHIFT_MASK)) {
       switch (ev->keyval) {
 	case GDK_Left: