I've tried installed WPMU in the root directory as well as a subdirectory. After completing the installation, I receive the email that my install was complete.
However, attempting to access any PHP file on my site shows an empty page in Firefox and Chrome, and in IE, it prompts to download the page.
I have all the installation requirements (mod_rewrite, permissions, etc), as I'm trying to replace a WP installation with this new WPMU installation. With WP installed, I can access PHP as intended on the server.
Is there something in the .htaccess file generated by WPMU that is causing this behavior?
Thank you.