@photocrati – I have this same issue of getting a 404 error when I try to save the Other Options. I tried using the Reset, but get the 404 error. I also tried installing the latest beta version & still get the 404 error when I try saving Other Options.
What I’m trying to change on this page is the path that displays in the advanced settings under lightbox effects: the paths to the stylesheet URL & javascript URLs. Is there a way that I can access this via ftp & make the change?
Thank you!