ISPConfig installed main php wont work

[ratcateme]

I have just installed ISPConfig. it runs fine on port 81 but when i try to access my normal server on port 80 all my PHP source is printed. i have checked /etc/httpd/conf.d/php.conf and it is using

LoadModule php5_module modules/libphp5.so

i think it use to use:

##ISPConfig INSTALL## AddHandler php5-script .php
##ISPConfig INSTALL## AddType text/html .php

but as you can the ISPConfig install has commented these lines out.

i checked /etc/httpd/modules and libphp5.so was there so i think it should be loading it.

i also looked in the httpd error log and it reports normal start so no errors about php.

dose anyone know how to fix this.