Video freezes XNView

[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 suspected there was something wrong with the PC, so I formattedf the harddisk and reinstalled XNView. And that helped, video worked OK. But when I had reinstalled all my software, the problem came back. Video freezes every time.

So it may be something with my PC or other software? Any ideas?

-svesjo2-

[user0]

But when I had reinstalled all my software, the problem came back. Video freezes every time.

so, what software cause freezes?

[svesjo2]

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

-svesjo2-

[svesjo2]

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 open a video, close the video, move the XNView window over to the smaller screen, and open another video, it works!!!

So it seems like it's not software, but I always have to start on the big screen, then I can move XNView to the smaller screen???
OK, I don't understand this, but I can live with this workaround.

-svesjo2-