Multiple EventListeners, modulus and rotating cubes... performance issues.

Question

Hi.
I've created a grid of 3D cubes using modulus, and the 3d cubes are were created from the Math and Flash Tutorial, if you are interested it is here http://www.flashandmath.com/advanced/menu3d/.
What  I am trying to accomplish (and it works, just the performance is lousy). All the cubes in the grid are inactive until the mouse hovers over them, then they start to rotate, and once the mouse moves off them they continue to rotate.
Time for the script:
To create I create the grid like this:
public function FlowerMenu(){
var rowY:Number = 0;
for (var i:int = 0; i < 190; i++) {
     var myCube = new               CubeMenu(["anemon.jpg","parodia.jpg","anagallis.jpg","lila.jpg","cosmos.jpg","adonis.jpg" ],100);
     myCube.x = 0 + ((i % 10) * 200);
     if (i % 10 == 0) {
         rowY += 200;
myCube.y = rowY;
addChild(myCube);
That works fine, although if anybody has any improvements I would  appreciate them.
And now for the mouse events & event listeners:
private var i:int = 0;
private function setUpListeners():void
    spBoard.addEventListener(MouseEvent.MOUSE_OVER, boardOver);
    spBoard.addEventListener(MouseEvent.MOUSE_OUT, boardOut);
private function boardOver(e:MouseEvent):void
    addEventListener(Event.ENTER_FRAME, rotateSquare);
private function boardOut(e:MouseEvent):void
    addEventListener(Event.ENTER_FRAME, rotateSquare);
private function rotateSquare(e:Event)
    renderView(curTheta+i, curPhi+i);
    i++;
So, this works, but after about 4 or 5 cubes have started rotating the
performance drops considerably. I can imagine creating that many
EventListeners isn't a good idea, but I can't see any other way of
doing it.
Does anybody have any suggestions or code improvements, I'm very new to AS3
and Flash so any help or suggestions would be greatly appreciated.
Thanks in advance.

Answer 1

Actually I'm not using paper vision, I'm using the source from flash and math's using transformation matrixes and bitmaps here http://www.flashandmath.com/advanced/menu3d/index.html
No, the boardOut function, is for when the mouse rolls off the cube, it starts it spinning indefinitely.
private function boardOut(e:MouseEvent):void
    addEventListener(Event.ENTER_FRAME, rotateSquare);
If it helps I could post the project in a zip, so you can get an idea of what it is, i'm doing and can see where the performance hit is. Is there any recognised  method of doing this on boards?