PHP doesnt work!

Hello, I have a Freebsd server 5.2.1 with Apache 2.0.48 and PHP 4.3.4. After the installation everything looks normal, but after i created some PHP web files to test it, I found that PHP is not working. When i open de PHP document with the browser i only receive a blank page. But if i check the source code, all the PHP code is in there. I did search a lot around documents, news, etc.. and i followed all instructions like: I did some modifications on httpd.conf. Basically i added this lines: AddType application/x-httpd-php .php4 AddType application/x-httpd-php .php LoadModule php4_module libexec/libphp4.so This line was added after a looooot ot test, and is the full path to the libphp4.so LoadModule php4_module usr/local/libexec/libphp4.so Also, i checked the httpd log errors and i found: [notice] Apache/2.0.48 (Unix) PHP/4.3.4 configured -- resuming normal operations I think i need help!!!... Greetings... Guillermo