title: E262: error reading cscope connection 0
body: <p>I am using screens for coding using <code>vim</code> and <code>cscope</code>. when I leave the code for about 5 min (I mean go out for coffee etc) and start again. I can't use <code>cscope</code> again. I will get errors like:</p>
  
  <ul>
  <li><code>E262: error reading cscope connection 0</code></li>
  <li><code>E257: cstag: tag not found</code></li>
  </ul>