I'm new here; please forgive me if I have missed a discussion on this topic. The combination of my new STX-16803, FW-7, and STX Guider doesn't quite work under TheSky X plus camera plugin (and Win 10 Pro). The imager chip returns images as it should, but the guider image is black, binary zero in all pixels. Meanwhile my old STX-16803, with internal guide chip, still works fine under TheSky X: both chips return stars and noise in their images as appropriate. TheSky X's instructions for setup of camera plus STX guider are the same as for the camera plus internal guide chip, and I've followed them carefully. (Also tried various other combinations from the setup selection in TheSky, to no avail.) There is no obvious switch, as there is in CCDOps, to force the software to use the remote guide head. Somebody must have encountered and solved this. How do I get TheSky X to connect to the STX guider?