Upgrading to 4.0 breaks my XML reader

Perhaps there's another workaround or explanation for this, but I didn't see anything in the update that should be impacting this.

The error that fires when the project is upgraded to 4.0 is:

XmlException: Text node cannot appear in this state. Line 1, position 1. This fires at "xmlStory.LoadXml(stringReader.ReadToEnd());"

the relevant code posted below. Note the BOM stripper worked fine before, but after the upgrade it sends the error whether I use an XML file with a BOM or not (tried both).

 // Gets ALL the scenes.
     void GetScenes ()
     {
         //initialize
         scenes = new Dictionary<string,Scene>();
         
         //TODO: doublecheck this isnt cvausing mass slowdown
         //BOM STRIPPER
         XmlDocument xmlStory = new XmlDocument();
         System.IO.StringReader stringReader = new System.IO.StringReader(xmlScriptRef.text);
         stringReader.Read(); // skip BOM
         xmlStory.LoadXml(stringReader.ReadToEnd());
                 
         //XmlDocument xmlStory = new XmlDocument();//new xmlDoc
         //xmlStory.LoadXml(xmlScriptRef.text);//load file
         
         XmlNodeList sceneList = xmlStory.GetElementsByTagName("scene"); //array of scenes
         
         foreach (XmlNode sceneInfo in sceneList)//foreach scene in list
         {
             Scene newScene = new Scene(sceneInfo); //builds scene out of xmlnode data
             scenes.Add(newScene.title, newScene); // add whole obj dictionary in the scenes[].
         
             if (currentScene == null) //if there isnt a currentscene yet
             {
                 ChangeScene(newScene.title);//change to first scene
                 //currentScene=newScene;//put in the first scene you get
             }
         }
     }