I'm using the frog js gallery. When a user clicks on the large image they are taken to yet another larger image eg rel="images/image1.jpg". Now on some machines when you click the back button in the browsers, you get taken back to the page you were last on but on other machines the back button takes you right back to the start of the gallery. Very frustrating and this happens in both ie and ff. Does anyone have any suggestions as to why this would happen on some machines and not others. Surely all the code is ok if it works on some computers?