FB 4.7 Mobile

Question

I am currently using FB 4.7 with AIR 3.4 and 3.5 (both tested). (just starting with FB4.7 moving from 4.6)
When I run the application or AIR Simulator, iOS Simulator and android device, the app Y position does not start on 0.
It reports it on 0 (in the trace) but the app is several pixels below.
Here is a screen shot of a text field at 0,0
code is simple:
package
    import flash.display.Sprite;
    import flash.display.StageAspectRatio;
    import flash.events.Event;
    import flash.system.Capabilities;
    import flash.text.TextField;
    import flash.text.TextFormat;
    public class SimulationTest extends Sprite
        public function SimulationTest()
            super();
            var appInfo:String = String(stage.fullScreenWidth + " , " + flash.system.Capabilities.screenResolutionX);// flash.system.Capabilities.version;
            trace(appInfo);
            trace(this.x + " , " + this.y);
            var text:TextField = new TextField();
            text.x = 0;
            text.width = 100;
            text.y = 0;
            var tf:TextFormat = text.defaultTextFormat;
            tf.size = 24;
            text.defaultTextFormat = tf;
            text.text =  appInfo;
            addChild(text);
I tried adding a sprite or a movieclip at 0,0 and same result.
I also tried with <fullScreen> true and false
and also <requestedDisplayResolution> high and standard.
Anything else I might be doing wrong?

Answer 1

opening an Actionscript mobile project in FB 4.6 sets the stage scaling and alignment:
stage.align = StageAlign.TOP_LEFT;
stage.scaleMode = StageScaleMode.NO_SCALE;
By default 4.7 does not do that and that was my weird error
I feel a bit dumb though and tahnks for your time.