Insert gallery = wrong images

Hi!

Im trying to insert an image gellery into my page.
Selecting images, creating the gallery and inserting
into the page works fine. But when I click on one of the
images to enlarge, all of a suden 20-30 thumbnails that I DID NOT select to be in the gallery, show up underneath the enlarged Image, together with the thumbnails that I DID select to be in there.

Also I have Easing Sliders, and the disapear when I enlarge an image.

My website is http://www.johnschuette.com