title: Grunt install failure
body: <p>I'm trying to install Grunt using the following command:</p>
  
  <pre><code>npm install -g grunt-cli
  </code></pre>
  
  <p>I get this result:</p>
  
  <pre><code>npm http GET https://registry.npmjs.org/grunt-cli
  npm http 304 https://registry.npmjs.org/grunt-cli
  npm ERR! Error: No compatible version found: grunt-cli
  npm ERR! No valid targets found.
  npm ERR! Perhaps not compatible with your version of node?
  npm ERR!     at installTargetsError (/usr/share/npm/lib/cache.js:488:10)
  npm ERR!     at next_ (/usr/share/npm/lib/cache.js:438:17)
  npm ERR!     at next (/usr/share/npm/lib/cache.js:415:44)
  npm ERR!     at /usr/share/npm/lib/cache.js:408:5
  npm ERR!     at saved (/usr/share/npm/lib/utils/npm-registry-client/get.js:147:7)
  npm ERR!     at Object.oncomplete (/usr/lib/nodejs/graceful-fs.js:230:7)
  npm ERR! You may report this log at:
  npm ERR!     &lt;http://bugs.debian.org/npm&gt;
  npm ERR! or use
  npm ERR!     reportbug --attach /root/node/npm-debug.log npm
  npm ERR! 
  npm ERR! System Linux 3.5.0-17-generic
  npm ERR! command "/usr/bin/nodejs" "/usr/bin/npm" "install" "-g" "grunt-cli"
  npm ERR! cwd /root/node
  npm ERR! node -v v0.6.19
  npm ERR! npm -v 1.1.4
  npm ERR! message No compatible version found: grunt-cli
  npm ERR! message No valid targets found.
  npm ERR! message Perhaps not compatible with your version of node?
  npm ERR! 
  npm ERR! Additional logging details can be found in:
  npm ERR!     /root/node/npm-debug.log
  npm not ok
  </code></pre>
  
  <p>Ideas? I know my Node and npm are installed correctly. I am using Ubuntu Linux 12.04 LTS with a standard LAMP installation and npm version v0.11.5-pre</p>