Buttons appear inconsistently!

We have the fotomoto buttons working with lytebox. But here's the thing...sometimes they work, and sometimes they don't!

See: http://www.evenjustphotography.com/ga...

Click on any photo at the top of this page...success. But now, randomly click some photos at the bottom of the page...buttons show up on some clicks, not others. The inconsistency is driving us nuts. It will show, for example, on a picture. Close that picture and open it again...now the buttons are gone. Even if you open up a picture and use the next button, the code will appear only on some pictures (but then disappear if opened at a later time). Any ideas?
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