I finally got around to installing a MDS RC-1Y. I am unable to get DX4WIN or any other program to talk to it. Tried USB, which I dislike, and a USB-serial dongle which I dislike almost as much. No joy. I've set up the preferences but the rotor drop-down is greyed out. I really like RS-232 since it is easy to troubleshoot. Any ideas? --- 73 de W3AB/GEO