Hi Gary , Can you point me to a link that will show what hardware /software i need to connect the Laptop using my prefered Planetarium program as a slave to ECU via the Servocat. I have looked around but haven't had a great deal of success. i haven't got my head around the ASCOM program. Feel like i need to register for a course or something. THX for getting the help getting Argo talking after Ron updated it