Is there any way to have an homogneous behaviour without putting explictly a \raggedright command as in lines 13 and 18 in my example.
Put the following in the preamble: \makeatletter \let\old@pd@twocolumn\pd@twocolumn \def\pd@twocolumn[#1]#2#3{% \old@pd@twocolumn[#1]{\raggedright#2}{\raggedright#3}% } \makeatother I'll put it in the todolist. -Hendri.