Ok, more experimenting (at least it's dry inside
). I can locate a target in Stellarium, import it to NINA and slew the mount to it. So that's all working, but I cannot get the "slew to zenith" to work. As far as I can figure it's because it can't see an eqmod driver, but as I understand it I shouldn't need one because I'm not using a serial (RS232) connection?
I feel like I'm going in ever-decreasing circles.