Problems installing Rails

Hi,

     I'm trying to install rails in my desktop and the command "gem
install rails --include-dependencies" shows the following message:

INFO: `gem install -y` is now default and will be removed
INFO: use --ignore-dependencies to install only the gems you list
Successfully installed rails-2.0.1
1 gem installed

    I think the dependencies were not installed, because in my
notebook it doesn't happened.

    Is it happen with someone?
    What can I do to install all the dependencies?

Thanks,
Osiro