Slideshow stopped working after upgrade to 1.7.3, 1.7.4 doesn't solve the issue. If I turn on the Flash (Enable flash slideshow - Integrate the flash based slideshow for all flash supported devices) a message
Get the Flash Player to see the slideshow.
appears in place, where the slideshow is suppose to be. In case I switch Flash off there is only a twirling circle.
You can see it at http://love2create.org/