Can't get slider to work

Hi Nikeo,

First of all, great theme! I really love the design and the ease with which it works.

Yet, it seems I can’t get the slider to work. I’ve followed the instructions on creating a slider (edit an image, check the slider box) but the extra fields that should appear to create the slider, don’t appear. I’ve added a screenshot to show this: http://prntscr.com/17g4o2

The only slider that is shown now is the demo slider: http://prntscr.com/17g5fe

Could you tell me what I should do to get the slider to work?

ps.
I’m using The latest version of Google Chrome and I’ve also tried the latest version of Internet Explorer.

Cheers,

Piet