Как подружить Datagrid и внешний XML в AS3

[zluk]

делал как в хелпе:

1. Create a new Flash file (ActionScript 3.0) document.
2. In the Components panel, double-click the DataGrid component to add it to the Stage.
3. In the Property inspector, enter the instance name aDg.
4. Open the Actions panel, select Frame 1 in the main Timeline, and enter the following ActionScript code:

import fl.controls.dataGridClasses.DataGridColumn;
import fl.data.DataProvider;

var teamXML:XML = <team>
        <player name="Player A" avg="0.293" />
        <player name="Player B" avg="0.214" />
        <player name="Player C" avg="0.317" />
</team>;

var nameCol:DataGridColumn = new DataGridColumn("name");
nameCol.headerText = "Name";
nameCol.width = 120;
var avgCol:DataGridColumn = new DataGridColumn("avg");
avgCol.headerText = "Average";
avgCol.width = 60;

var myDP:DataProvider = new DataProvider(teamXML);

aDg.columns = [nameCol, avgCol];
aDg.width = 200;
aDg.dataProvider = myDP;
aDg.rowCount = aDg.length;

Все работает.

а когда пробую подключить внешний XML перестает робить:

var loader:URLLoader;
// ...
loader = new URLLoader();
loader.addEventListener(Event.COMPLETE, xmlLoaded);

var request:URLRequest = new URLRequest("xmldata.xml");
loader.load(request);
//...
function xmlLoaded(event:Event):void {
    var myXML:XML = new XML(loader.data);
    //...
}

import fl.controls.dataGridClasses.DataGridColumn;
import fl.data.DataProvider;


var nameCol:DataGridColumn = new DataGridColumn("name");
nameCol.headerText = "Name";
nameCol.width = 120;
var avgCol:DataGridColumn = new DataGridColumn("avg");
avgCol.headerText = "Average";
avgCol.width = 60;

var myDP:DataProvider = new DataProvider(myXML);

aDg.columns = [nameCol, avgCol];
aDg.width = 200;
aDg.dataProvider = myDP;
aDg.rowCount = aDg.length;

пробовал разными способами, никак не получается...
подскажите плиз
собственно Adobe Flash CS3, ActionScript 3.0