Preloader and Scrollpane Problems

Hi, I’m having problems with my preloader and scrollpane. I know this is a common problem (That the preloader doesn’t start until 80%), but even if i uncheck “export in first frame” from my scroll pane it still adds it (I can see on the bandwidth profiler).

Has anyone else had this problem and know how to get around it? I can see what else to do, but i can’t believe macromedia left this issue in.

Thanks,
Pnub