http://cladlab.com/ does it, click on the “Keep Calm And Welcome Back” image.
Ahh duoh, I just realised that is a problem with NextGEN not calling the lightbox stuff correctly, and may have nothing to do with your plugin after all.
Lightbox works only for me when I am logged in, which is the opposite behaviour mentioned by two users above!
If not logged in, clicking on a image goes to a new page with that image (not the desired behaviour).
Sorry! Didn’t intend to be such a bad replier. I had to uninstall the plugin to get it working again, and since I have to test server (only the live site), I didn’t want to mess around with it again.
My apologies…I respect your keen interest to resolve bugs.
