title: Pyzmq Error in IPython Notebook
body: <p>I'm trying to run IPython notebook in Vista. I believe I installed all the necessary  dependencies (listed <a href="http://ipython.org/ipython-doc/dev/install/install.html#dependencies-for-the-ipython-html-notebook">here</a>) with easy_install. IPython runs fine. But when I try and run the IPython notebook everything starts up fine but then the kernel dies once I try to do anything. I get the following  confusing error:</p>
  
  <pre><code>Traceback (most recent call last):
    File "&lt;string&gt;", line 1, in &lt;module&gt;
    File "C:\Python27\lib\site-packages\ipython-0.11-py2.7.egg\IPython\zmq\__init__.py", line 25, in &lt;module&gt;
      minimum_pyzmq_version, pyzmq_version))
  ImportError: IPython.zmq requires pyzmq &gt;= 2.1.4, but you have 2.1.11
  </code></pre>
  
  <p>2.1.11 >= 2.1.4 so I'm not sure what the problem is. 2.1.11 is the latest version of pyzmq (<a href="https://github.com/zeromq/pyzmq">here</a> is the project page).</p>
  
  <p>[Update: Thanks @ThomasK. I was already running IPython 0.12 but I ran easy_install --upgrade on both IPython and pyzmg and that fixed it.]</p>