Hi all, I use lucida fonts for my documents with \usetypescriptfile[type-buy] \loadmapfile[ec-bh-lucida.map] \usetypescript[lucida][ec] \setupbodyfont[lucida,10pt] When I will use \dot in math formula, the result seems to be a \prime\prime. It works without lucida... Strange ??? I don't understand the reason of this behavior. I suspect the use of ec, am I right ? Anyway, it's strange ! Renaud