Thanks, but... >You need to add the "xalign" attribute to these treeview columns. I assume you mean property. But TreeViewColumn doesn't have this property according to the documentation. And when I try it, the same warning is given. I only see it in CellRenderer. But I need it in CellRendererText. Is the property inherited from CellRenderer? I tried this too with no luck. > The >attribute value comes from a new model column that returns a float >between 0.0 and 1.0. 0.0 is left aligned; 1.0 is right aligned. Sorry I don't understand what you mean by new model column. Manuel _______________________________________________ gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list