Imported textfields completes loading in IE but not Firefox

My new website loads fine in IE, but on Firefox it never completes loading. It looks like [FONT=Lucida Console][COLOR=Blue]Event.COMPLETE[/COLOR][/FONT] is never dispatched even after [FONT=Lucida Console][COLOR=Blue]bytesLoaded[/COLOR][/FONT] equals [FONT=Lucida Console][COLOR=Blue]bytesTotal[/COLOR][/FONT] in [FONT=Lucida Console][COLOR=Blue]ProgressEvent.PROGRESS[/COLOR][/FONT] and nothing appears to be downloading.

Here is the address of the website: http://home.mnjul.net/frameholder.php?nosound=1&ignore_frame=1

The swf you see is preloader.swf. It loads shared_contents.swf (the first bar) and main.swf (the second bar).

What is causing this trouble is probably that main.swf has two imported MovieClips (placed on stage) containing two TextFields that embed two fonts (Myriad Pro and Meiryo); the TextFields are exported from shared_contents.swf.
If I remove those two TextFields from main.swf, then everything is perfectly fine, [FONT=Lucida Console][COLOR=Blue]Event.COMPLETE[/COLOR][/FONT] is dispatched in preloader.swf…just that none of my dynamic text would show.

I’d actually reckon this as a bug in the flash player for Firefox but is there by any chance/luck that I can work around this problem?

Thanks for your replies in advance.