Thanks very much for the prompt replies and help. It seems that these dongles are not to be trifled with, but Omega is the only software which keeps me from running Ubuntu on all our computers, as we need it to print to our Gerber Edge machines. There is other software on the market which would talk to the printers, but they are also dongled and use MS Windows. The "git" thing looks good, but probably too complicated for me to contemplate. The dongle is a "Superpro", if anyone has specific info. Kind regards
