Scrolling in FF3 kills my flash?

Hi all, hope I can get some help troubleshooting a weird issue. I just uploaded this site: http://www.victory-mission.org/index.htm, when I scroll on any page using FF3.0, my rollover flash nav no longer works. I have to click on the nav once and then the rollover buttons are activated again.

This doesn’t happen in IE, so not sure if this is a Flash or a Firefox issue, but any help would be awesome!

Thanks in advance,
-Super