Hi Michael, that issue is often related to the .htaccess file of the /media folder. Some server configurations get in conflict with this file, and for consequence the slider images doesn’t appear.
This issue can be solved by renaming the .htaccess file, like .htaccess-renamed
PS: If you have a theme issue, please open a Ticket, since we do not give support in the Forum, neither by e-mail. We’ll answer your Ticket asap!. Thanks.-