I don’t understand the relevance.. I am already using Lightbox to view the photos, but I can’t organize it in more than one gallery per page.
I have almost the same problem!!! every save attempt goes to a blank page, but the saving process goes ok.
I have also re-uploaded wp-admin directory ..
I have an idea!
I have installed one of those social share plugin that let me put a social button where I like simply paste the specific code.
Now …. where do I have to paste that code (es. <social code>) to have it under every thumb in media gallery?? Where is the loop that generates the media gallery?