Thanks Glen.
I am unsure of the ASI USB2.0 cameras after my experience with the ASI120MC. It has a
split-frame problem with my Win10 laptop which makes it unusable for guiding. Even Sam (from ZWO) said:
"sometimes, some usb3.0 host may have such compitable problem
this is not a problem of software but hardware
but our usb3.0 cameras should have no such problem"
Anyway, I am not sure if the ASI290Mini Mono would have the same problem with my laptop as it is USB2.0. I have emailed ZWO, let's see what they say.