a dedicated box, PHP 4 has been installed. Plesk 7 works fine. apache 2 works fine two.

However, apache can not run php well. always prompt a pop up window and ask users to download it. My isp has been working for more than 6 hours. I checked httpd.conf and found no php4 module load. anyone has any good idea for that? I don't want to re-install the whole system. Thanks.