URGENT! Choppy Animation in screensaver

Sorry for a first post question, but im in BIG trouble here!

I have made a screensaver in mx2004, at 1024x768 resolution. Its about 80k and looks/plays great in Flashplayer. As soon as i convert it into a screensaver, it becomes choppy as hell. Unacceptably so. Does anyone know of a quick fix, or known issue with SWFs/Screensavers?

The frame rate is set at 30fps, im loading in elements just before they are required rather than all at once.

I dont know what to do. I have to deliver in a few hours. Everything was going great until now. Should have tested the export along the way