I bought SlideshowBox 2 today, 2011-06-14.
Inside the package folder, in the following location: HTML embed > Templates > ThumbnailSlide > Embed_Auto-detect, you have the file sample.html. When I load this in my Safari browser (locally), it cause a "crash" -- Safari won't respond to any further actions. I can't close the window, or the tab, or switch windows or tabs. My only recourse is to force-quit Safari.