For some reason the support topic discussing lightbox effect problems has been marked as resolved. I can confirm at least one issue that persists with NGG v.2.0.27...
The lightbox effect is not working for single NGG images embedded in posts or pages. The lightbox opens for images in galleries when the thumbnail is clicked, but for photos by themselves, the image file opens by itself in the browser window.
I have confirmed all NGG settings and ensured that paths to the proper scripts are correct. See examples below.
Click single images in this sample post:
Click thumbnails in any gallery:
We are using the shutter effect and it has always worked for single images prior to the 2.x updates. We now have hundreds of posts with images that now reload in the browser window when clicked.
Thank you in advance for any feedback.