Problem adding images

Hi,

I click on ‘slideshow’, and choose ‘add new’.
When I click on Insert: Image slide, a pop-up appears with a search function. I can’t see any image, so I try to find images with the search function, but nothing happens. I’m very sure there are pictures in my media library.

What am I doing wrong?

Cheers!

http://wordpress.org/extend/plugins/slideshow-jquery-image-gallery/