I'm am a new user of Zorin and Linux. I recently installed Zorin-16 Core and run into a strange phenomenon. Everything appears to be running smoothly, but every now and then a dialogue or submenu of a program (in this case both Thunderbird as well as BlueMail) appears as totally scrambled.
As far as I can see, it only happens in dialogues or submenus, not in the main programs.
My laptop is an ASUS M712D, Ryzen 7, Radeon RX Vega 10 system with 20GB Internal memory.
After the first couple of appearances I tried several installs (either with and without propriety drivers), no difference. I also installed the latest amdgpu-install package, which also did not make any difference.
Has anybody encountered this likewise and knows how I can/should progress to solve this? Thanks for your help in advance!