Maybe you can post an example of your slideshow so that others here can download and try to diagnose what is going on and preventing the show from displaying?
This is a great idea, I'm going to share a few slideshows that I've done successfully recently. mapquest directions
Players control an egg-shaped, heavily armored fighter in the multiplayer online fighting arena Shell Shockers. Work your way up the food chain by demonstrating your mettle in a variety of situations. You have access to bombs, reggie, handguns, and snipers, among other weapons. By becoming an expert with each specific firearm's skills and strategies, you can become the best egg fighter possible. Intense player battles can happen in Shell Shockers.