Flash Loading With Blank Screen?

Question

I have a flash movie that has an mp3 file on one of the layers.  The mp3 file loads fine and plays but when the flash movie first appears on the page it comes up as a blank white box, then it eventually loads 5-6 seconds later.  I see the pre-loader for a split-second right before it loads.  Shouldn't I be seeing the pre-loader bar right from the beginning? and see the progress bar?  Why am I seeing nothing but white prior to it loading?

Answer 1

I've found a solution that works for my situation.  I found a lot of solutions while researching this, all of them quite messy.  But you gotta do what you gotta do I guess.  Anyhow, rather than rewrite what I did, this tutorial pretty much sums it up -
http://www.8bitrocket.com/newsdisplay.aspx?newspage=10807
There are a few things to note in this tutorial, that I did not find in other very similar tutorials.  Many tutorials, like this one, have you unchecking export in first frame and placing assets on the stage in an unused frame (usually frame 2).  This seemed to work OK for everything except sounds for me.  The sounds would work initially, but after beating the game and returning to the main menu, EVERY SINGLE SOUND would be playing.  This tutorial makes a point to tell you to place the assets outside the stage area:
see step 6;
6. Put the asset holder clip on the stage in Frame 2 of your main movie (outside the viewable region)
That resolved the issue for me.
Anyhow, hope this helps some people.  I now have a preloader that displays when the game is about 15-20% loaded, rather than 80%.