I've been right through the forum but can't find a solution. I'm using yourShop template for Joomla! 2.5 and when I try to set the position or select a K2 article in Image Show GK4, the lightbox starts, the screen goes black, but the options don't appear.
Lightbox in K2 works fine (select author, or view image, for example).
I looked at the solution for the lightbox issue for Virtuemart, but there is no Mootools upgrade in Joomla 2.5.3
I've emailed Teitbite and email with Admin access to my site.
Please help.