install.php doesn’t see wp-config.php

I have uploaded wordpress to my remote server (Blog), created an empty database, and the wp-config.php file with the connection details. When I run install.php I get this message:

There doesn’t seem to be a wp-config.php file. I need this before we can get started. Need more help? We got it. You can create a wp-config.php file through a web interface, but this doesn’t work for all server setups. The safest way is to manually create the file.

When I click on “create a wp-config.php file through a web interface,” I am sent to a page with this message:

The file ‘wp-config.php’ already exists. If you need to reset any of the configuration items in this file, please delete it first. You may try installing now.

When I click on “installing now,” I am returned to the first page.
If I remove the existing wp-conf.php file, I get the Step 1 page, but when I click on “let’s go,” I get “No input file specified.”
Thanks for your help.