Camera Setup = STC-7 + SC2 + AO-8A 1st problem which I'm sure is just a configuration setting, is - While trying to calibrate the mount (guiding) the mount wouldn't move. Using my ST cameras, I plugged the 6 conductor phone cable into the serial adapter on the camera & it guided just fine. On this camera I plugged the same cable into the jack on the SC2. I believe that for the ST cameras, I set the guide option to guider relays. That's how I have it configured now, but No Joy. The main problem is: At the end of the mount calibration, I would get a runtime error. I tried three time & it happened every time. Next bug. I would take a sample image using 2x2 binning. I would then switch to 1x1 binning to compare images, At the end of the exposure, I would get a camera disconnect error. This happened twice. If I would try to reconnect the camera, I then would get " Filter Wheel error" and the camera would not connect. This also happened twice. If I would cycle the power supply on the camera, then I could get the camera to connect up.