Hi Sam!
I have a routine question. Whenthe using the ZWO 120mm purely as a guide scope, I know you click on "Windows WDM-style webcam camera".
But for mount, do you click on "ZWO USBST4 (ASCOM)" or "ASI ST4 Telescope Driver (ASCOM)"? The cable plugs into the ST4 jack on my Orion Atlas EQG mount......
Thanks,
Bryan S.