Topic: JavaScript / Flash problems. Troubleshooted for 2 days straight now.

http://samcassidyphotography.com/Gallery.html

I have been ruthlessly trying to figure out why this will load fine on some peoples computers but not others. For me it says I need the latest version of Flash and java, which I have. I have uninstalled and reinstalled about anything you can name, still no dice. HOWEVER, my friend, running the same OS with the same browser and the same version of Flash got it to load. Any help ? this is literally making me pull my hair out...