Norbert You might be right, there might be something missing. I follow the Youtube video installation, that basically ask you to copy the package, expend and link the executable. So no real installation. The scilab 6.0 start and immediately shoot down. I am running concurrently scilab 5.5.2 - no problem (installed from MInt apps). From command line it open the 5.5.2 version. On Wed, Jul 26, 2017 at 12:44 PM, Norbert