Turn off Image Enlarger/Slideshow Feature

Hello on the homepage of http://dbg.casperblackwell.siphonlabs.com I can’t figure out why the image “What can I do for you” has green spinning arrows when you hover over it and the image for “So Here you are” does not.

I would like to the to turn that feature off (the green arrows on hover).

Cheers,

Casper