--- a/freewrl/tests/SAIClick/README
+++ b/freewrl/tests/SAIClick/README
@@ -1,3 +1,6 @@
 Test script from Jeff Dubrule <igor@pobox.com>
 
 Please read the README.SAI in the build directory to see how to run this.
+
+Due to problems with PROTO nodes testscript.wrl doesn't work.  I have
+provided testsimple.wrl, which doesn't use PROTO nodes.