I have a very simple MXML file that doesn't do anything if usePreloader is set to false:
<?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" usePreloader="false" layout="absolute"> <mx:Button label="Go" horizontalCenter="0" verticalCenter="0" click="trace('hello');"/> </mx:Application> The button never becomes visible. I tried this: <?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" usePreloader="false" layout="absolute"> <mx:Script> <![CDATA[ trace('test'); ]]> </mx:Script> </mx:Application> And the trace never happens. If I set usePreloader to true, or leave it out, then each example works as expected. Wtf? -- Derek Vadneau