Hello, I would like to see how the two tar.gz file (EKS & IIBDS) in the ESP-r download-file page work. I have managed to tar extract them, but I do not now how to proceed. In both README file there is  written : The following shared libraries are required for run-time linking:         -lX11.4 => /usr/lib/X11/libX11.so.4.10         -lF77.1 => /usr/lang/libF77.so.1.1         -lc.1 => /usr/lib/libc.so.1.6 Define the LD_LIBRARY_PATH environment variable for other locations of these libraries. I did not manage to find these file, so I was wondering if it could be possible to continue, or if there is another way to proceed... Besides, I am new to linux, so, if there are some other suggestions, it could be really useful to me... Thank you very much for your help, <div style="margin-left: 240px;">yours faithfully, <div style="margin-left: 120px;"> MP </div></div>