Hello Bob:Any time the scope slews to an object to image, the first image is always off center. For example, if I do a run of twelve 30-minute exposures, the first image is never centered and every 4th image is not centered, This is because I do a FocusMax run after every 90 minutes. For some reason, after a slew, the plate solve properly centers the mount only after one full exposure. I made a simple demo of short exposures of M27 WITHOUT focusing (see attached log file). It looks like I need to force a repeat plate solve after a slew. Any ideas?Mel