/rails/info/properties not found

I have installed ruby on rails on a mac os x running apache 1.3.33. I
am trying the expenses RoR test app and if I click on ‘About your
application’s environment’ link I get: The requested URL
/rails/info/properties was not found on this server.
Of course if I use Webrick it actually works. The file index.html gives
this link that should give some content from the about() js function.
But obviously it does not exist. Any same experiences?

Dinos