Okay, now I'm baffled. Two tests;
(info is a softlink to info.php)
First one uses my custom version of PHP5. Second one uses the DH version of PHP5.
Hit submit at the top (test2) and you'll notice something very odd about the $_POST variable in the first example: it's not there!
I'm completely baffled by this. Anybody else run into any similar problems? No errors in the error log and my .htaccess file is setup no differently for either one: