title: "Could not find a valid gem in any repository" (rubygame and others)
body: <p>I've been trying to install this 'rubygame' gem for some time, but whenever I use the command</p>
  
  <pre><code>gem install rubygame
  </code></pre>
  
  <p>it will give an error:</p>
  
  <pre><code>ERROR:  Could not find a valid gem 'rubygame' (&gt;= 0) in any repository
  ERROR:  While executing gem ... (Gem::RemoteFetcher::FetchError)
  Errno::ETIMEDOUT: Connection timed out - connect(2) (http://rubygems.org/latest_specs.4.8.gz)
  </code></pre>
  
  <p>I've also tried other gems but with similar results:</p>
  
  <pre><code>ERROR:  Could not find a valid gem 'rake' (&gt;= 0) in any repository
  ERROR:  While executing gem ... (Gem::RemoteFetcher::FetchError)
  Errno::ETIMEDOUT: Connection timed out - connect(2) (http://rubygems.org/latest_specs.4.8.gz)
  </code></pre>
  
  <p>I've already made sure I have an internet connection, and have already tried reinstalling both ruby and rubygems (currently using ruby 1.8, rubygems 1.7.2). Googling didn't help me at all. I would be very grateful if anyone can solve my problem. My sources list only shows <a href="http://rubygems.org">http://rubygems.org</a></p>