Just arrived in the post today - downloaded the drivers and Regipix 6.1 - tried experimenting with day time objects to see resolution, focussing and stacking. Used small 76mm Dob. F300 with Barlow to help with focussing on nearby object (brick wall of house about 300yards away).
It worked really well out of the box, although at first, because of fairly strong daylight, had "white out". Resolved with settings/options.
Can't wait until we get a clear night now.
001 ZWO Test edit Registax.jpg