Taking the advice, I cranked up the gain... went to 2x2 (which was normal) and night before last was great. Nice and tight stars.
Last night, even when the autofocuser (AF) completed after many attempts, I had fairly out-of-focus stars. So back to the Bahtinov mask and making sure my offsets are updated and AF is unchecked.

BTW, any ideas what to do when the AF routine gives up? The whole process just seems to stop. Maybe go back to the original set focus position and keep imaging?
Last night I had to shut down , disconnect, stop and reconnect everything to get it imaging again. I tried restarting the camera driver (via the button on the CCD Tab). The imaging process seems to think the AF is doing something, but switching to the AF tab, it's doing nothing.

Read More...