When an image is uploaded to a post, you can click to see the larger version. This worked as expected in release 1.2 and opened in Lightbox. I had the "LightBox Displays All Images on Page" option set in Options - Attachments. But after I installed release 1.3, that option was no longer checked in Admin and when I did check it, the image does not open in Lightbox, but instead displays the larger version in the post, overlapping the sidebar. This is an example. I am using Firefox on a PC.