Amount of Images to Load

Is there a minimum amount of images you need to load in order for Xpano to work?
I have 3 images which I loaded and then saw a note under the status bar, “Failed to Stitch Pano”. They are all .jpg files.
I used these same 3 images in another stitching program earlier, and that program did create a nice panorama.
I would like to use Xpano as it seems easier and better suited for my needs.
Thank you

I’ve just tried with 2 and it works without problems. If you can, maybe share your input files, so people can better look into it.