Hi, I have \startcolumns [...] \startexercici Amb el mateix experiment aleatori de l'activitat anterior, calcula els esdeveniments següents: \startitemize[a,packed,columns] \item $(A^c)^c$ \item $(A \cap B)^c$ \item $(A \cup B)^c$ \item $A^c \cup B$ \item $A^c \cap B$ \item $A \cup B^c$ \item $A^c \cap B^c$ \item $A \cap B^c$ \stopitemize \stopexercici [...] \stopcolumns but the itemize does NOt display as two columns. What is the solution for that? Please, CCme Thanks a lot, Xan. PS: The exercici enviroment is defined as: \defineenumeration [exercici] [text={\startcolor[middlecyan]Exercici\stopcolor},headstyle=bold,between=\blank,titledistance=0em,textdistance=1em, stopper={.\space},location=serried,left={\bgroup\bf},right={\egroup},width=fit,headstyle=\ss]