I'm having the same issue as well. Just got an HX Stomp, but when I launch HX Edit, it mirrors my desktop, and then closes when I try to do something (connect the stomp, or select something from the menu such as preferences). It's definitely not an issue with the Stomp connection. It's something with HX Edit, and my PC/Windows setup. It makes no sense. I've gone back and forth with Line 6 support, and they can't figure it out. My son has a windows 10 PC as well, and it works fine on his. I haven't been able to discern any differences in his configuration, other than he has a different graphics card than I do. It seems like the issue is graphics related as the program won't display anything, even a black screen. I can't figure it out, and it's really frustrating.