Hi, I try to scale the font size of a label. The following code should do that job: Pango.FontDescription fd; fd = new Pango.FontDescription (); fd.Size = Pango.Scale.Large; label.ModifyFont (fd); label.Layout.FontDescription = fd; label.Show (); But it won't work. A bold label works great with: fd.Weight = Pango.Weight.Bold; instead of fd.Size = Pango.Scale.Large; Any hints? Michael