I got an error on the following short program (which ghc compiles and runs). =========== -- Some unix-like tools written in simple, clean Haskell import Data.List import Data.Char import System.IO import Text.Printf -- First, two helpers io f = interact (unlines . f . lines) showln = (++ "\n") . show -- Compute a simple cksum of a file main = interact $ showln . foldl' k 5381 where k h c = h * 33 + ord c ======== Hugs> :load chksum.hs ERROR "chksum.hs":15 - Unresolved top-level overloading *** Binding : showln *** Outstanding context : Show b Text.Printf> This error has been around for a while. See http://www.arcknowledge.com/gmane.comp.lang.haskell.hugs.bugs/2006-11/msg000... Is there a fix for this problem? Thanks, Dave Feustel