So I've set up an HTML5 single page application, and it's working well. The page is at
Sounds like your server is not re-writing the urls to the app's base URL.
The URL re-writing needed on the web server is server-dependent. For Apache, you'd use mod_rewrite.
Instead, switch Angular to the "Hashbang mode" (the default) so the urls will all store the local state after the # in the url.
I don't want my apps to require server configuration changes, so I recommend hashbang mode.
See AngularJS docs. See section "Hashbang and HTML5 Modes" The HTML5 mode section describes all the configuration issues needed to support HTML5 mode for the urls.