I would like to install Avogadro 1.1.1 on my Ubuntu 13.04 system. Normally, I would have gone to the Ubuntu Software Center or Synaptic Package Manager to install the "approved" version of this molecular modeling program. However, the newer version seems to have fixed some bugs in version 1.0.3. I have a Dell Inspiron 910 - one of their netbooks - and I have recently downloaded Saucy Salamander (Ubuntu 13.04). I have the tar file that I downloaded from the Avogadro website. I am not a Linux expert, and would dearly love a series of steps (including the proper directories) so that I can properly compile and install this software package so that it works in Ubuntu 13.04. Thank you for any assistance you may be able to provide.