As promised, two screenshots.
One of the transaction window on my laptop screen, and another when it's on my extended screen.
All looks normal and correct on the laptop screen, but it's not rendering quite correctly on the extended screen.
As I say, I'm not claiming this has anything to do with my 'freezing' problem, but on the other hand if you say it's all supposed to work on Windows 10 then I'm mentioning this because it's the only "non-standard" thing about my setup.