diff -r ed2957490bbf -r 4189b8bf3a5b src/proto2/NetworkObject.cc
--- a/src/proto2/NetworkObject.cc	Thu Nov 20 20:27:12 2008 +0000
+++ b/src/proto2/NetworkObject.cc	Thu Nov 20 22:10:28 2008 +0000
@@ -88,7 +88,7 @@
 }
 
 std::ostream& operator<< (std::ostream &s, const NetworkObject &obj) {
-    return s << "<NetworkObject #" << obj << ">";
+    return s << "<NetworkObject #" << obj.obj_id << ">";
 }
 
 /*