Not sure if this is a code issue

Question

Hello
I've had a fair bit of help from this and another forum to get my code working. Thanks to everyone.
Basically I've created a screensaver randomly selecting one of eight images registered as Movie Clips.
The issues that I have found are that the playing of the movie does not always work properly, ie it stops on a fade in or fade out.
The latest version I have is that if I create the swf and html file from my Virtual Machine (XP) at work the movi runs fine on my home (Vista) machine.
If I try and create these files from my home machine the test (Ctrl + Enter) freezes and also if I play the swf file that also freezes, the html file runs fine.
I had this also happen on the other way round on a previous version, things would stop on the Virtual Machine but when I copied the files to my home machine all worked fine.
Does anyone have any thoughts on this?
I've listed the full code below on what I am running.
Paul
import fl.transitions.Tween;
import fl.transitions.easing.*;
import fl.transitions.TweenEvent;
import flash.events.TimerEvent;
import flash.utils.Timer;
import flash.utils.setTimeout;
var mc0:mcClip0 = new mcClip0(); // each mc is associated with its' own class, whose base class is MovieClip();
var mc1:mcClip1 = new mcClip1();
var mc2:mcClip2 = new mcClip2();
var mc3:mcClip3 = new mcClip3();
var mc4:mcClip4 = new mcClip4();
var mc5:mcClip5 = new mcClip5();
var mc6:mcClip6 = new mcClip6();
var mc7:mcClip7 = new mcClip7();
var mcList:Array = new Array (mc0, mc1, mc2, mc3, mc4, mc5, mc6, mc7);
var imgCount:uint = 8;
var currentImage:uint = 0;
var myTimer:Timer = new Timer(1500, 1);
addChild(mcList[currentImage]);
mcLogoStart();
myTimer.addEventListener(TimerEvent.TIMER_COMPLETE, timerHandler);
function mcLogoStart():void{
    mcList[currentImage].x= Math.floor(Math.random()  * (stage.stageWidth-400))  + 200;
    mcList[currentImage].y= Math.floor(Math.random()  * (stage.stageHeight-400))  + 200;
    var mcLogoTween:Tween = new Tween(mcList[currentImage], "alpha", None.easeIn, 0, 1, 2, true);
    mcLogoTween.addEventListener(TweenEvent.MOTION_FINISH, freezeImage);
function freezeImage(e:TweenEvent):void{
    if(mcList[currentImage].alpha==1){
        myTimer.start();
    if(mcList[currentImage].alpha==0){
        currentImage=Math.floor(Math.random()  * (imgCount-1))  + 1;
        addChild(mcList[currentImage]);
        mcLogoStart();
function timerHandler(e:TimerEvent):void{
    mcLogoFinish();
function mcLogoFinish():void{
    var mcLogoTweenOut:Tween = new Tween(mcList[currentImage], "alpha", None.easeOut, 1, 0, 2, true);
    mcLogoTweenOut.addEventListener(TweenEvent.MOTION_FINISH, freezeImage);

Answer 1

for example:
import fl.transitions.Tween;
import fl.transitions.easing.*;
import fl.transitions.TweenEvent;
import flash.events.TimerEvent;
import flash.utils.Timer;
import flash.utils.setTimeout;
var mc0:mcClip0 = new mcClip0(); // each mc is associated with its' own class, whose base class is MovieClip();
var mc1:mcClip1 = new mcClip1();
var mc2:mcClip2 = new mcClip2();
var mc3:mcClip3 = new mcClip3();
var mc4:mcClip4 = new mcClip4();
var mc5:mcClip5 = new mcClip5();
var mc6:mcClip6 = new mcClip6();
var mc7:mcClip7 = new mcClip7();
var mcList:Array = new Array (mc0, mc1, mc2, mc3, mc4, mc5, mc6, mc7);
var imgCount:uint = 8;
var currentImage:uint = 0;
var myTimer:Timer = new Timer(1500, 1);
addChild(mcList[currentImage]);
mcLogoStart();
myTimer.addEventListener(TimerEvent.TIMER_COMPLETE, timerHandler); var mcLogoTween:Tween;
function mcLogoStart():void{
    mcList[currentImage].x= Math.floor(Math.random()  * (stage.stageWidth-400))  + 200;
    mcList[currentImage].y= Math.floor(Math.random()  * (stage.stageHeight-400))  + 200;
    mcLogoTween = new Tween(mcList[currentImage], "alpha", None.easeIn, 0, 1, 2, true);
    mcLogoTween.addEventListener(TweenEvent.MOTION_FINISH, freezeImage);