title: Unable to open an existing notebook in IPython Notebook
body: <p>I want to open a notebook, say 'IPython - beyond normal Python'. To achieve this, I perform the following steps, in order.</p>
  
  <ol>
  <li>Move to the place where IPython Notebook is installed.</li>
  <li>cd to 'Notebooks'. iPython dashboard opens in a browser with list of available notebooks.</li>
  <li>Click on the desired notebook.</li>
  </ol>
  
  <p>The third step opens a new tab, but I can't see the contents of the notebook. A screen shot of what appears under that tab is shown below.<img src="https://i.stack.imgur.com/lnuFg.png" alt="Contents of the new tab that opens upon completion of step 3."></p>
  
  <p>How can I see the contents of the notebook?</p>