Routing error: Double slash in resources

Hi,

I get a application running over:

Rails 2.3.5, Application is set 2.1.0 at enviroment.rb

Ruby: 1.8.7 (2009-06-12 patchlevel 174) [i686-darwin10.2.0]

The Urls are generated right, but the resources like stylesheets,
javascripts are generated with double slashes.

ex: <link href="http://127.0.0.1:3000//stylesheets/style.css?
1254514155" media="screen" rel="stylesheet" type="text/css" />

This working before I upgrade the mac to snow leopard. I update all
following these guides (http://hivelogic.com/articles/compiling-ruby-
rubygems-and-rails-on-snow-leopard/)

Somebody know how I can fix it?

Tks!