Thread:Extension talk:SmoothGallery/See all images in 16.4

I have gotten the extension to work almost great in mw 1.16.4, but I am seeing all the images one after another, on the page. Does this sound like a CSS problem? Any other things that I should check? It was working just fine in mw 1.15, but I need to upgrade to mw 1.16. Thanks - John