XnView Software

Now, this is strange, I have found out more:
I have 3 screens, two at 3840x2160, scaling 200%, one at 1920x1080, scaling 125%.
If I run XNView on the smaller screen and open a video, it freezes.
If I run XNView on a large screen and open a video, it works!
If I run XNView on a large screen and ...

I don't know, I should have checked for each app I installed :-/

-svesjo2-

I can't play videos in XNView MP on one of my computers.
When I doubleclick on a video, XNView freezes. Any video format, any codec.
Pressing F3 to play in VLC player works OK.
I have two PCs, and use XNView on both. On the other PC it works OK.
The PC has three monitors of different sizes.
I ...