Strange scale problem

Hey their folks, lovely forum you got.

I have a difficult qeustion ( I think ).

Well I got a movieclip called my_tg2, in that movieclip I got a component named my_tg. Wich is thumbgrid ( photo gallery) .

To the frame of my_tg2 I added this code:

///

stage.align = StageAlign.TOP_LEFT;
stage.scaleMode = StageScaleMode.NO_SCALE;

stage.addEventListener( Event.RESIZE, handleResize );

function handleResize( event:Event ):void

{
my_tg2.width = stage.stageWidth;
my_tg2.height = stage.stageHeight;
}

///

What it does is strange compared to what I heard it SHOULD do.
It scale’s more to the right then the left when I make the swf or html bigger, when I make the swf fullsize, my movieclip called my_tg2 is somewhere above my menu bars etc etc.

I’ve tried a lot of variation, went to different forums and mailed the staff of thumbgrid. But no succes.

I hope you folks can help,

Cheers.