Resolution big problem!

hi friends,

I am working on ViewSonic [LCD] at resolution of 1280x1024. good!

I am making full flash website. it’s working good on my pc.
when um opining it on laptop resolution appear low.

ActionScript Code:

import flash.display.BitmapData;

cover._x = Stage.width / 2;
cover._y = Stage.height / 2;

var tile:BitmapData = BitmapData.loadBitmap(“tile”);

function fillBG() {
this.beginBitmapFill(tile);
this.moveTo(0,0);
this.lineTo(Stage.width,0);
this.lineTo(Stage.width,Stage.height);
this.lineTo(0,Stage.height);
this.lineTo(0,0);
this.endFill();
}

fillBG();

var stageL:Object = new Object();
stageL.onResize = function() {
fillBG();
cover._x = Stage.width / 2;
cover._y = Stage.height / 2;
}

Stage.addListener(stageL);

what’s wrong…