Why can't 3D Rotation animation doesn't work on other PCs?

programming flash
1

Hi,

I have created a Buttons Menu and then using Flash CS4 AS3 3D Rotation Tool Just added tilting effect using manual tweening and added the following code:

ButtonPanelTilt_mc.addEventListener(MouseEvent.ROLL_OVER, rollOverMenu);

function rollOverMenu(event:MouseEvent):void {
ButtonPanelTilt_mc.gotoAndPlay("Tilt");
}

ButtonPanelTilt_mc.addEventListener(MouseEvent.ROLL_OUT, rollOutMenu);

function rollOutMenu(event:MouseEvent):void {
ButtonPanelTilt_mc.gotoAndPlay("Normal");
}

The .SWF File is working pretty well on my PC but on other PCs, when I move my mouse over the buttons menu, it disappears.

How to solve the problem? The above is the only code I have.

Please help.