It's a problem with Apache 2.0 and GL 1.3.8.. from the 2.0 upgrade doc:
PHP Formatted Code
The handling of PATH_INFO (
trailing path information after the true
has changed for
Modules that were previously implemented as
a handler but are now implemented as
a filter may no longer accept requests with PATH_INFO.
Filters such as
INCLUDES or PHP are implemented on top of the core handler,
and therefore reject requests with PATH_INFO.
You can use
the AcceptPathInfo directive to force the core handler to accept requests with PATH_INFO and thereby restore the ability to use
PATH_INFO in server-
So, add the AcceptPathInfo On line in, and it works great!