I just make a new blank page, insert a photo gallery with ±9 pictures. I can preview it. but when I try to save it Frontpage says: "To save this page and Photo gallery, open a FrontPage based website, and save the page to that site.
hmm, i just tried to make one, and it worked for me. I am not sure whats going wrong. Did you try to save it by using save as? other then that i am really not sure.
but some one else will be able to help.