Help with my preloader - starts at 70%

I have a preloader on the bottom layer of my movie. The whole movie is 449k. When I go to my website, the screen stays black and then the preloader pops up and starts at 70% and then grows to 100.

My fla has 3 frames.
1st one is the preloader, 2nd one draws a line and the 3rd one is all my site content. It looks like its loading other things before the preloader and I cant figure out why.

Anyone have any ideas?