It took me a little while to find this but during installation, I was getting:
Error output, so disabling automatic redirect.
There were no details provided, so I traced back to redirect and did a var_dump of $lasterror
It appears that this may be related to:
http://php.net/manual/en/migration52.incompatible.php - Dropped abstract static class functions. Due to an oversight, PHP 5.0.x and 5.1.x allowed abstract static functions in classes. As of PHP 5.2.x, only interfaces can have them.