Flex 3: Problem Dragging a Component

Hi,

I created an MXML component that I want to be able to move around.

I added a button and I capture the mouse down & mouse up events:

protected function btnMove_mouseDownHandler(event:MouseEvent):void

{

     startDrag(false, new Rectangle(0, 0, parent.width - width, parent.height - height));

     event.stopImmediatePropagation();

}

protected function btnMove_mouseUpHandler(event:MouseEvent):void

{

     stopDrag();

     event.stopImmediatePropagation();

}

However, after the mouse is released, the component jumps back to the original location.

I can't get it to stay at the (x,y) it was released!

Any ideas???

Thanks!