If you want to install Gretl from sources and you are familiar with the terminal then use the following commands: #git should already be install on your PC #make a Gretl directory where you will download the sources mkdir gretl-git # change directory to gretl-git cd gretl-git #copy the sources git clone git://git.code.sf.net/p/gretl/git gretl-git #build the dependencies, but sometimes you will have to install the dependencies one by one sudo apt-get build-dep gretl ./configure --enable-build-doc --enable-openmp make make pdfdocs sudo make install #chck to see if Gretl runs gretl #OPTIONAL #some dependencies # curl si libgtk sudo apt-get install libcurl4-openssl-dev && apt-get install libgtksourceview2.0-dev #json sudo apt-get install libjson-glib-dev #/usr/local/bin/gretl_x11: error while loading shared libraries: sau libgretl-1.0.so.0: cannot open shared object file: No such file or sudo ldconfig Mihai