MCDU display size Trouble

Hello Builders,

today I have a problem with my MCDU display size. Please see my attached YT video. I would appreciate any ídea!

https://youtu.be/JmW_hmOqWU0

PS: FMGS Version is 39.0 (please dont ask me to update, as this version is running fine for a long time)
Further I must say I already deleted the MCDU Config files, but no success as you can see.

Thanks,
Stephan

Check the display resolution. With access via TeamViewer these will be adjusted when the resolution in TeamViewer is set differently.
Did you made an update to Windows 10? I had to adjust the resolution of my MCDU displays again after update.

Oh, stupid me.... I had checked the resolution multiple times, but did not recognize that I had set portrait instead of landscape format ... in Germany we say "Betriebsblind" ... (use google translate to find out what I mean :-D)

Thanks Fritz for your hint :-)