Hi Themos, Have installed python and PPA and like Earl had the same issue with saving the api key. Though thanks to Earl breaking the ground first I moved it from the defaulted directory (C:\Program Files (x86)) to my user directory and it was then accepted OK. Loaded and solved the example images (h.jpg first then v.jpg) and finally the i.jpg and did the Find Polar Axis and then the Show Improvement. All worked as per your instructions. I presume we would only iterate through the improvement (i.jpg) image(s) as we adjust and get better aligned. Also, noted that the test images are shown as solved (in green) when re-doing the test after closing and restarting due to the saved wcs files. Would suggest a button for reset which deletes the wcs files in case people use the same names for each image - would make an interesting adjustment if they used the wrong ones I'd expect. My next task is deciding which camera to use if we get a clear night. So good work thus far. PS Earl your api key is visible if that is a concern PPS As a new purchaser of Astroart5 I too would be interested in using it for solving as well.