title: Error adding modes in Processing
body: <p>I recently downloaded Processing 2.2.1 and when I tried to add a programming mode through the menu on the right side, I got a <code>java.net.SocketException: Network is unreachable</code> even though I can obviously connect to the internet, and an error message at the bottom of the "Add Modes" popup that said <code>could not find listof available contributions</code> instead of a list of the modes. I know that some modes can be manually downloaded and unzipped but I have yet to find a .zip file for the Python mode. Is it possible to fix this error so that I can download the modes through the GUI box and if so, how?</p>
  
  <p>I had previously downloaded it for my Linux machine which runs Ubuntu and everything worked fine there but I was trying to migrate everything to my Windows 32 bit so I just re-downloaded it today for windows and got this error.</p>