[Plugin: Lightbox Plus] Lightboxed images loading at the top of the page

Hi,
I’m using your plugin on lots of sites and it’s brilliant. But I’m having an issue on one site and just can’t see what’s causing it. When you click an image, it opens in lightbox but always at the top of the page, not in the current viewable area.

If you have a look here… http://tamiyamodelmagazine.com/blog/2012/09/21/sample-post-six/

Scroll down the page a bit and then click the thumb on the left of the tracks on the model tank. It’ll open the large image, but it’ll be off screen.

I’m using the exact same settings on another site and it’s working perfectly. Any ideas what might be causing it?

Thanks in advance

Justin

http://wordpress.org/extend/plugins/lightbox-plus/