Thanks, Pablo and Henning I suppose I am making a mistake with my setupinterlinearspace. My school asks for Times New Roman (I use termes) 12pt and onehalfspacing. In latex I used linespread{1.3} and so I supposed setting ConTeXt with setupinterlinearspace[1.3ex] was the right way (I read somewhere that vertical spaces should be measured in ex and horizontal spaces in em; maybe it's not widely accepted). I tried setting my interlinearspace to 3ex and it looked much better, but I must compare it with a onehalfspacing of wordprocessors to be sure it is not such different. Sorry for not providing an example (again my lack of experience), I will do it from now on. thanks, I will try to learn a little more to get an idea of how ConTeXt ist built