Preloader problem. Abrupt wait then its already at 30&

I’ve set up a preloader on a flash movie (nothing special) and I’ve inserted a 10 Megapixel image inside the movie for the sole purpose of slowing down the download and allowing me to see the preloader in action.

However, I’ve noticed that it shows me a blank screen for a few seconds and by the time the text & bar loader appear, its already 30% of the way through!

You can see the HTML & FLA and SWF here:
** - HTML Link
- FLA Link
- SWF Link**

I had seen a tutorial on this, but I can not find it again.