Hi, I successfully installed lightbox-2 on WP 3.0 beta1 and it works fine...mostly. But on this page, for example, the first two images operate as a lightbox, the second two jump to a display on a page (not even a blank one).
http://69.89.31.227/~arzanaor/arti-e-mestieri/squerariolimaestri-dascia/la-famiglia-casal/
Was it something I said? ;)
