Index: dam clients/DamUI/trunk/src/Dam/Forms/DamPlugin.cs
===================================================================
diff -u -r463 -r468
--- dam clients/DamUI/trunk/src/Dam/Forms/DamPlugin.cs	(.../DamPlugin.cs)	(revision 463)
+++ dam clients/DamUI/trunk/src/Dam/Forms/DamPlugin.cs	(.../DamPlugin.cs)	(revision 468)
@@ -673,8 +673,12 @@
                 string inputXml = DamXmlSerialization.SaveInputAsXmlString(input);
 
                 var damEnginInterface = new EngineInterface(inputXml);
-                damEnginInterface.Validate();
-                damEnginInterface.Run();
+                string validationMessages = damEnginInterface.Validate();
+                string outputXml;
+                string calculationMessages = damEnginInterface.Run(out outputXml);
+               
+
+
             }
             catch (Exception e)
             {