Xml load problem

I’m stumbling upon a strang phenomena. Locally my file works ok every time, only from server it behaves completely weird.

I have a xml mp3 player which loads xml data from file. But from server it get’s stuck not loading the xml file properly. And I’ve noticed that many times if I first view the xml file in browser then after that when viewing the html/swf file it DOES load properly.

code of the xml part;

public var myXML:XML
public var mySongs:XMLList;
public var loader = new URLLoader(); 
public var urlreq:URLRequest;

then it should load the xml file name from variable xmlmusicdatafile into a loader

urlreq = new URLRequest(xmlmusicdatafile);
loader.load(urlreq);
loader.addEventListener(Event.COMPLETE, setinit);    
loader.addEventListener(ProgressEvent.PROGRESS, showxmlloadprogress); 

If I trace(loader) right after .load it does trace [object URLLoader] but neither function setinit() nor function showxmlloadprogress() is being executed. It hangs on loading the xml file.

The xml code by the way is simple

<?xml version="1.0" encoding="utf-8"?>
<musiclist>
  <musicitem>
    <itemname>life-is-creative-patrick-jansen.mp3</itemname>
    <title>life is creative</title>
    <artist>Patrick Jansen</artist>
    <album />
    <link>http://marketplace.envato.com/user/patrickjansen/portfolio</link>
  </musicitem>
</musiclist>

If anybody has any clue or idea i’d appreciate it.

I’m stuck in a black hole of knowing the xml load action has been triggered but the xml file never really started loading (showxmlloadprogress never starts tracing anything)

Any suggestions?
P.