MCL Script Error In Flash 9

Question

I have a very simple site built in flash which loads various
SWF files using MovieClipLoader.
MCL is only called on a button press.
There are no other significant scripts in the movie.
The called SWF files range in size from 1MB - 2.5MB, contain
limited functionality and a stop(); action in the first frame.
The client is running 3 machines (PC, Power PC Macs &
Intel Macs) and is reporting a Script error (The usual infinate
running slowly one). On all test machines (11 in total PC, Power PC
Macs & Intel Macs, 3 different locations with varying
connection speeds) everything runs correctly and I have been unable
to duplicate his issue.
The only exception was a factory configured iMac, and even
then only in Safari. I fixed this by updating the flash 9 player
from r20 to r28. The client has done this but seen no change.
Has anyone encountered a similar problem, or are there known
issues with MCL and larger swf files?
Any help would be greatly appreciated.
Thanks
dan.

Answer 1

Non of my test machines match exactly the clients connection
speed (they're on a 512 connection) but I do have slower (dial-up)
as well as faster conections.
I'd normally agree that my code must be doing something else,
but I swear the only this that's there to do anything is the MCL
object and it's related status bar (triggered onLoadProgress).
[code]
stop();
/* Initiate Vars */
var img_folder:String = "folios";
/* Image MCL Functionality */
imgMCL = new MovieClipLoader();
imgListener = new Object();
imgListener.onLoadInit = function (imgMC) {
imgLoadComplete(imgMC);
imgListener.onLoadProgress = function (target:MovieClip,
bytesLoaded:Number, bytesTotal:Number):Void {
var per:Number = Math.floor((bytesLoaded/bytesTotal) * 100);
status_mc.loadBar_mc._width = per;
status_mc.percentage = per;
imgMCL.addListener(imgListener);
imgLoadComplete = function(imgMC) {
this.gotoAndStop("site");
status_mc._visible = false;
folio_mc._x = 0;
createImg = function(file_name:String):Void {
var file_name:String = img_folder + "/" + file_name +
".swf";
var clip_ref :MovieClip= folio_mc;
imgMCL.loadClip(file_name, clip_ref);
changeFolio = function (folio:String):Void {
news_mc._x = 825;
contact_mc._x = 825;
folio_mc._x = 825;
status_mc._visible = true;
createImg(folio);
/* Start Initial Folio Load */
changeFolio("folio1");
[/code]
From here changeFolio(); is only ever called using onRelease
handlers attached to buttons. And that's it. No more script in
there.
The only time I've encountered anything similar has been with
an online SWF player which appeared to have very broken download
that paused for noticable amounts of time. Here the download is
smooth (according to the clients viewing of the loadbar).