Possible reasons for slideshow difficulties:

1. Ad-blocker is enabled. Disable and refresh the page
2. Flash plug-in or upgrade is needed. Update is free from Adobe. Please make sure your system is compatible before installing.
3. Internet connection is too slow and cannot handle the file transfer.
4. If slideshow is jerky, this may be due to the speed of your internet connection, or the computer processing speed. Try closing high-demand applications.