back & forward button

Hi there! I have a question concourning the Back and Forward button actions in browsers. My problem consists in: since I have my php ugraded to 4.0.3pl1-0 potato (yes, I have a Debian), these 2 buttons don't work as they did before. Before upgrading, I could move back and forward between my pages with both IE and Netscape, but now they say "Page has expired. Please reload/refresh." or whatever. I hope that somebody who experienced the same problem has a way to fix it, 'cause I'd rather see my pages working the way they did before. thx, bye: scissors -- Laszlo Murvai-Buzogany mail: scissors@gt-systems.hu