Index: OpenSceneGraph/trunk/examples/osgcallback/osgcallback.cpp
===================================================================
--- OpenSceneGraph/trunk/examples/osgcallback/osgcallback.cpp (revision 11124)
+++ OpenSceneGraph/trunk/examples/osgcallback/osgcallback.cpp (revision 12529)
@@ -173,5 +173,5 @@
 
     // if not loaded assume no arguments passed in, try use default mode instead.
-    if (!rootnode) rootnode = osgDB::readNodeFile("cow.osg");
+    if (!rootnode) rootnode = osgDB::readNodeFile("cow.osgt");
 
     if (!rootnode)