Gallery columns showing as slideshow

I've create a 3 column gallery, but it shows up as a slideshow on the page (not in the editor). See the very bottom of this page - the small photos are in one slideshow instead of individual images in 3 columns.

http://www.southeglinton.ca/community-awareness-tpz/

I'm using Smart Slider 3 for the other slide shows, which I believe you guys recommended. Could that be creating a conflict? I'm thinking no, because the Smart Slider 3 short code is [smartslider3 slider=3] and the gallery columns are [gallery link="none" size="full" ids="1873,1874,1875"]. I've tried different settings like 'thumbnail' but no matter what I set it to it displays a slideshow.

I can only find info on why someone is not getting a slideshow, instead of the opposite.

Thanks
Charles