I'm on Windows XP and just installed subversion for the first time. I used the CollabNet Subversion install. When I open a command window and type svn help it gives me a list of svn commands. When I open Instant Rails I click to enter a Ruby Console Window, svn help doesn't work in there. I get an error that 'svn' is not recognized as an internal or external command. Should I be able to use svn from within a ruby console window or do I need to be using the windows command window?