I have a new installation of gui.exe, version .188. The software opens (run as Administrator) and performs well until I open the PATTERN LIST or PATTERN TOOL. The software pauses for a few seconds then crashes, closing down completely.
I have completely uninstalled and reinstalled repeatedly, with the same behavior. I have downloaded multiple times.
I deleted the favorites.mpn file each time, the one that installs on startup, about 6kb.
I called tech support, who was unable to get me past this problem, but who verified I have a valid license.

I am running Windows 10, latest updates. Newer computer, plenty of resources. All of that said, I have successfully installed the software on a second computer and it runs fine there, no crashes at all.

Looking for help, new ideas, new eyes on this problem, thanks.