[eluser]gtech[/eluser]
hello,
ensure you do not echo.. print_r any content before you do the redirect. (and check there are no white spaces outside the <?php tags as this will also send a space to the browser)
the redirect requires header information being sent, and if you display any content before the redirect then the header information will have already been sent. I think you also get this problem when setting session data as that requires headers to be sent also.
