PhP 4.2.1 (and various)

Hi! I've recently upgraded to 4.2.1, but i have gotten a lot of problems with it. First of all my pbpBB 2.0 forums stopped working (http://utge.dyndns.org/phpbb2/index.php). When you try to log in i get an error, malfomed header request? (im not on the actual machine now :)). I also have problems with logins to my site (jaggu.org). After messing a lot to get sessions working again, I have tracked down the consisten problem to the Header () function. A comment in the manual says "@" should be put in front of all function calls before header(). I tried that, to no use. So my question is, why has that changed, and what do we do now to authenticate users and redirect them to anothe page? And what the hell is this "@" thingy, i cant see to find anything on it in the manual, and search doesnt work for chars like that. I hope you guys can clarify this for me. Sincerely Olav Bringedal jaggu.org __________________________________________________ Do You Yahoo!? Everything you'll ever need on one web page from News and Sport to Email and Music Charts http://uk.my.yahoo.com