Have installed v1.5.5a on my localhost (XAMPP on windows 7) and also on our live website. But cannot install it onto our internal server intranet (XAMPP on Windows X).

Am at the System Setup page which resides at:
http://our-server-name/store-name/zc...e=system_setup

Have entered the following:

Admin Server Domain: our-server-name
Storefront HTTP Domain: http://our-server-name
Storefront HTTP URL: http://our-server-name/store-name
etc.

But the System Setup screen keeps coming up with red errors for the Domain and URL fields:
"Enter the domain-part of the URL for your store. eg: http://www.example.com"
"Enter the entire URL for your store. eg: http://www.example.com/zencart/"
etc.

Is there some trick to install on something other than localhost or example.com? Thanks.