/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?