         addEventListener(MouseEvent.MOUSE_DOWN, mouseUpDownMoveHandler);
         
         // Stop hover highlighting on rows underneath the editor.
-        addEventListener(MouseEvent.MOUSE_MOVE, mouseUpDownMoveHandler);
+        addEventListener(MouseEvent.MOUSE_MOVE, mouseMoveHandler);
     }
     
     /**

    {
        if (event.cancelable)
            event.preventDefault();
        else
            event.stopPropagation();
    }
}
}
        clearErrorStringFromContainer(this);
        removeEventListener(MouseEvent.MOUSE_UP, mouseUpDownMoveHandler);
        removeEventListener(MouseEvent.MOUSE_DOWN, mouseUpDownMoveHandler);
        removeEventListener(MouseEvent.MOUSE_MOVE, mouseMoveHandler);
    }
    
    /**
