Installation problems with path

I’ve searched and searched but can find no definitive answer to this question. This is another include problem.

I have WP working on one site. I want to set up a new WP installation on another domain (different site). I unzipped WP into a folder named Wpj. I have created a new DB, set the user, and entered the configuration into wp-config.php.

I keep getting errors that relate to undefined functions and it appears this is due to required files not getting included.

I set up a test and get this info:

getcwd = /home/jimryan/public_html/Wpj
$_SERVER[‘DOCUMENT_ROOT’] is /home/jimryan/public_html

I modified .htaccess and added these paths to the PHP include path:
get_include_path() = /usr/lib/php:/usr/local/lib/php:/home/jimryan/public_html/Wpj:/home/jimryan/public_html/Wpj/wp-includes:/home/jimryan/public_html/Wpj/wp-admin

No matter what I do, install.php dies with this:
Fatal error: Call to undefined function: get_option() in /home/jimryan/public_html/Wpj/wp-includes/template-functions-general.php on line 116

I have also tried changing the define of ABSPATH to the actual path string instead of using dirname(__FILE__).

I’ve also tried copying over my wordpress files from the other site since I know those work. I then entered the new site’s DB configuration. This gives the same error.

I’m stumped. Is this site specific? Any ideas?

Thanks