Adobe Flex with xml creates cache problems....Need help

Question

Hi,
I have created a qoute calculator in flex and the data's are pulled from an xml file, but when I upload these to server and when new xml file with new data is uploaded the application is showing with same old data.
Every time I have to change the xml and have to run the application one again to get new updated data.Following way I am connecting the xml file.
I have read in many places that by giving random time function will clear this cache so I tried and even that also not working for me.
Please, looking for an urgent help .
..................Code.................................
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" creationComplete=" initComponent()"  layout="absolute" width="640" height="516" backgroundColor="#FFFFFF"  >
private function initComponent():void
                 var url:String = "data.xml?blabla="+new Date().milliseconds+";";
                var d:Date = new Date();
               xmlURL = url + "?" + Math.random();
               items.source=xmlURL;
<mx:XML id="items" source="data.xml" />
<mx:HTTPService id="xmlDataList" url="{xmlURL}" />   

Answer 1

try adding a datadump to your HTTPService; POST some irrelevant data, this will force the service to run without caching