Browser settings for Flash Forms?

I have set up a site using Flash Forms. It is working for all of my coworkers except one. He cannot see Flash Forms on any site, not just the one I created. Are there some browser settings that need to be set to see Flash Forms? This is happening for him in both IE & Firefox, though. Also, we are behind a firewall that blocks Activex, so maybe this has something to do with it, but I don't know why it would work for everyone else.

Thanks,