Where is ipython notebook hiding?
<p>I have not used <code>ipython-notebook</code> in a while and I think I'm doing something wonky. When I launch it (with <code>ipython notebook</code>) I get a web interface that lets me edit files in the browser: <img src="https://i.stack.imgur.com/tihIB.png" alt="screenshot">  but the menus are all MIA there's no way to run anything or add new cells. </p>

<p>I suspect that I'm missing something very simple and obvious, here. What am I doing wrong? </p>