I'm loading an external swf file into an empty movie clip
I've tested this in multiple environments, hosted on multiple
servers. When opened locally from my HD, the preloader works in
both IE/firefox. When hosted on windows IIS, the preloader works in
both IE and Firefox. When hosted on Apache on a Linux (Red Hat)
server, it only works in IE. In firefox you see the preloader and
it hangs at "Loading 0%".