before the change of resolution to my pc the game stayed (as i told in my previous post) in a little scale even at fullscreen, resulting in a little square in the mid of the screen surrounded by black, with all the boxes really too little and the texts unreadable, the zoom worked for seeing the character and try to do something but i wasn't able to read anything without losing diopters and when i opened an in-game window (like the map or the equipment) it occupied all the little game screen....
so i've changed the resolution of my pc to 1920x1200 the result is that i'm seeing at fullscreen everything now (not a sqaure with the black parts around it) and the texts are intellegible without losing my eyes

tnx for the help