header & headers_sent BUG

Hello all: I am having a hard time with a small piece of code. I was wondering if someone may be able to explain why the following code will not work... I have been scratching my head for a few hours now and I am stumped. <?php header("Location: http://someplace.com"); if( ! headers_sent()) header("Location: http://somplaceelse.com"); ?> So I would expect this piece of code to direct me to somplace.com. However it does not, and I always end up at somplaceelse.com. I have done a tcpdump to assist with debugging here is the output below. From the look of it the first header is getting ignored all toghether. Is there some way to force changes I made to the headers, that will make headers_sent return TRUE? Thanks, -James --- GET /tracking/test.php HTTP/1.1 Host: dev.www.someplace.com User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.0) Gecko/20020623 Debian/1.0.0-0.woody.1 Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,video/x-mng,image/png,image/jpeg,image/gif;q=0.2,text/css,*/*;q=0.1 Accept-Encoding: gzip, deflate, compress;q=0.9 Accept-Charset: ISO-8859-1, utf-8;q=0.66, *;q=0.66 Keep-Alive: 300 Connection: keep-alive Cookie: toolkitAccess=1 HTTP/1.1 302 Found Date: Wed, 23 Jul 2003 10:04:55 GMT Server: Apache/1.3.27 (Unix) mod_ssl/2.8.14 OpenSSL/0.9.6d PHP/4.3.1 mod_perl/1.27 X-Powered-By: PHP/4.3.1 Location: http://someplaceelse.com Keep-Alive: timeout=15, max=100 Connection: Keep-Alive Transfer-Encoding: chunked Content-Type: text/html ---