--- deliantra/server/socket/item.C	2007/06/08 09:18:31	1.48
+++ deliantra/server/socket/item.C	2007/06/08 09:20:20	1.49
@@ -847,6 +847,9 @@
   sint16 x = pl->observe->x + dx;
   sint16 y = pl->observe->y + dy;
 
+  if (!m)
+    return;
+
   if (!xy_normalise (m, x, y))
     {
       new_draw_info (NDI_UNIQUE, 0, ob, "You see nothing there.");