Fullscreen bug in AIR 2.5

Question

We built a flash application which was packed with AIR v1.0(current
version at that time), which by default opens in full screen mode
we had added a button within the application which uses the following
code to minimise the application
This code minimises the application till AIR runtime v2.03. Once the
runtime is upgraded to V2.5 the application stops to go fullscreen in
the below scenario
After upgradation if the user clicks minimise button, and then tries
to restore the application by clicking the application tab in the
taskbar, the application fails to go fullscreen
It remains as a borderless window with a partial portion of the
application displayed
Thereafter the user has to force quit the application and relaunch
This application series is our largest seller, and we are deeply
concerned of the Windows and Macintosh versions
We would really appreciate a quick response
Sanjay
Code
/* To minimize the window- on click the minimize  method is called*/
windowChanger.minimise.
addEventListener(MouseEvent.CLICK,minimize);
private function minimize(event:MouseEvent):void
            myWindow.minimize();
            trace("minimize the window");
/* To maximize the window- onActiviate method is called*/
this.addEventListener(Event.ACTIVATE, onActivate);
public function onActivate(evt:Event) {
            stageDetails();
public function stageDetails():void {
            stage.scaleMode=StageScaleMode.NO_SCALE;
            stage.displayState = StageDisplayState.FULL_SCREEN;
            stage.displayState = StageDisplayState.FULL_SCREEN_INTERACTIVE;

Answer 1

For those following along, Sanjay and I have taken the discussion offline and he provided me with a couple of sample projects.  I've been able to reproduce the issue on AIR 2.5 and it has now been entered as a bug in our internal database, #2751098.
I've also proposed a workaround that appears to work on both Mac and Win.  Instead of
this.addEventListener(Event.ACTIVATE, onActivate);
public function onActivate(evt:Event):void
     stageDetails();
I've suggested using
stage.nativeWindow.addEventListener(NativeWindowDisplayStateEvent.DISPLAY_STATE_CHANGE, onDisplayStateChange);
public function onDisplayStateChange(evt:NativeWindowDisplayStateEvent):void
     if (evt.afterDisplayState == NativeWindowDisplayState.NORMAL)
     stageDetails();
I hope this helps anyone else that might encounter this issue.
Thanks,
Chris