After I’ve updated WordPress to 2.6.3 Lightbox stopped working, and don’t ask me why, I didn’t changed anything in the layout of the blog.
It was fustrating since with Lightbox not working all the images on the blog where opening in a new window, very annoying.
I’ve found a Lightbox alternative for WordPress 2.6.3, that will work like a charm to all images already present on your blog. The plugin is Shutter Reloaded and the author says that it’s even faster than Lightbox, we’ll see ;)
Anyway here’s a demo of what the plugin does, if you didn’t saw that on other posts with images.