If this is due to local swf files, I'd recommend taking a look at the "Glocal FlashPlayerTrust directory" section in our Flash Player Admin guide and Chapter 5: User-configured settings.
Thanks for the fast reply!
I looked. Unfortunately, the people viewing it have their laptops locked down, so cannot access the Internet, Control Panel or Flash Player Settings. So the suggestions there do not help. Anything that you suggest?
Is there anything I can do at the production end to help?
Thanks again for your response. It is a bit of an urgent situation, so I really do appreciate it.