Rspec not working on windows

Hi Folks,

I've been following the railstutorial.org/book and have run into a problem installing rspec. I have managed to get this to work before on windows xp, but on windows 7 I can't get it to work. I follow the install process:

1) Configured my gemfile like this:

source 'http://rubygems.org'

gem 'rails', '3.0.3'
gem 'sqlite3-ruby', '1.3.2', :require => 'sqlite3'

group :development do
  gem 'rspec-rails', '2.3.0'
end

group :test do
  gem 'rspec', '2.3.0'
  gem 'webrat', '0.7.1'
end

2) Running bundle install  (successfully)

3) Running rails generate rspec:install

I now have rspec installed, however I cannot run rspec form the command line, all I get is:

'rspec' is not recognised as an internal or external command, operable program or batch file.

I suspect that there's something wrong with my path but after googling and messing with this I cannto figure it out, any help would be very appreciated,

Thanks,

Jamie