Hi list, i turned to 1.6.3 from 1.4.0 on Linux for one application i used to enter the L*a*b* values manually. While 1.4.0 chartread works as expected, in 1.6.3 it ends up with: "chartread: Error - No instrument at port 1" The command was "chartread -v -xll ..." Any idea? Best regards, Daniel Pfeiffer