I didn't have this issue before but after, I think, visiting one of the servers I noticed that the game area has is kind of zoomed out. Both in full screen and windowed mode, at different resolutions. I attached the screenshot to show it. Note that captions are ok, only the game screen is zoomed out.

Nothing (hardware/software/game settings) was changed, just noticed the chane after visiting several servers.

Does anyone know how to fix that?