What operating system are you running.
I think 11 was lucky if it ran properly on Window 7.
Maybe you can set the compatibility option for the program.
Right click on the Archicad.exe program file and choose 'Properties'.
Go to 'Compatibility' and set it for Windows 7.
No idea if it will work.
It might just be a problem you have running a 13 year old program on a new system.
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11