Problems installing php_4.3.1 on Apache_2.0.45 (Win32-WinXP)

I installed PHP on my Apache server in Windows XP as told here; http://www.php.net/manual/en/install.apache2.php and http://www.php.net/manual/en/install.apache2.php#install.apache2.windows When I restarted the Apache server, all html files worked fine, but trying to access any php file gives the message "500 internal server error". I checked the error log file; which says: "Premature end of script headers: php.exe" I think I've put the dll's in the right directory (c:/windows/system32) and inserted the right commands to php.ini (in c:/windows) and httpd.conf in the Apache folder. So I dont know what's wrong really. What does that error message mean? Any help would be nice :) Anders -- ________________________________ Anders L. Fougner alfou@broadpark.no mob. +47 97158863 http://www.stud.ntnu.no/~anderfo