Buttons now require a double click?

I built a simple jpg comp click-through as a software demo, and inserted flash movies to simulate interative buttons (hover styles basically). I am using the SWFobject script to load the swfs, and they render properly. However, they seem to need a single click within the swf to "activate" them. This not the IE click to activate issue. They look correct. They just don't interact with the mouse until I have clicked inside the SWF once. This has the effect of making all the button require a double-click to work, and means that when I hover on them, they do not animate until after I have clicked inside.

This only seems to happen in Firefox...
FF 3.6.3 and Flash Player 10,0,45,2

Anyone else noticed this?

link?

gparis