Hmm...I just installed apache/php on a box running Mandrake, and moved a test site on over to it. Its including head.php properly (this is called from index.php), and then it also includes content.php (also called from index.php) which is set to check a variable $content, and include a file based on what the content variable is (makes it so it loads content based on variables passed in a url). For some reason, though, when the site is running on the linux server, it doesn't switch content from the default when a link is clicked and the variable is changed...any ideas as to what can be causing this? Was frustrating enough getting php to be interpreted, heh...
~Davin