--- xpdf-3.00/xpdf/XPDFCore.cc.ud	2004-10-07 12:44:23.000000000 -0700
+++ xpdf-3.00/xpdf/XPDFCore.cc	2004-10-07 12:44:26.000000000 -0700
@@ -1051,6 +1051,10 @@
   GString *msg;
   int i;
 
+  if (action == NULL)
+    // Nothing to do.
+    return;
+
   switch (kind = action->getKind()) {
 
   // GoTo / GoToR action