Just to clarify, there are 4 known variations of the syntax for .htacess file.

QUOTE:

ForceType application/x-httpd-php

ForceType x-httpd-php

SetHandler application/x-httpd-php

SetHandler application/x-httpd-php5

That last one is the newest and likely came about because many hosts provide a choice between PHP4 or PHP5 , if you host does the same, be sure to see if that fixes it.

If none of these work, I can once again, only suggest contacting your hosting provider, and I hope they are more than just a reseller that knows how to point and click (sorry, but I seriously hate those types of supposed "system adminisistrators" )