diff -r cfed4f87e003 -r 060dba23e9bb src/netanim/examples/grid-animation.cc
--- a/src/netanim/examples/grid-animation.cc	Mon Aug 13 10:46:09 2012 -0700
+++ b/src/netanim/examples/grid-animation.cc	Mon Aug 13 16:08:13 2012 -0700
@@ -65,10 +65,8 @@
 
 
   OnOffHelper clientHelper ("ns3::UdpSocketFactory", Address ());
-  clientHelper.SetAttribute 
-    ("OnTime", RandomVariableValue (ConstantVariable (1)));
-  clientHelper.SetAttribute 
-    ("OffTime", RandomVariableValue (ConstantVariable (0)));
+  clientHelper.SetAttribute ("OnTime", StringValue ("ns3::ConstantRandomVariable[Constant=1]"));
+  clientHelper.SetAttribute ("OffTime", StringValue ("ns3::ConstantRandomVariable[Constant=0]"));
   ApplicationContainer clientApps;
 
   // Create an on/off app sending packets