So in order to see if the library was present, I did sudo locate libindidriver [sudo] password for richardh: /usr/lib/x86_64-linux-gnu/libindidriver.so.2 /usr/lib/x86_64-linux-gnu/libindidriver.so.2.0.0 It isn't. However, a search on the ubuntu packages site revealed libindidriver1, v 1.9.4 sudo apt search libindidriver1 Sorting... Done Full Text Search... Done libindidriver1/jammy 1.9.4+dfsg-1 amd64 Instrument-Neutral Device Interface library -- driver library I'm reluctant to install, in case I cause more problems. Any advice pls? Best RRead More...