Haskell version installed on my computer with OS Windows 7, 64 bit. GHCi, version 7.8.3 My haskell script is in a file named baby.hs with following functions, doubleMe x = x + x doubleUs x y = x*2 + y*2 removeNonUpperCase :: [Char] -> [Char] removeNonUpperCase st = [c | c <- st, c `élem` ['A'..'Z']] I get following error:- g>:l baby [1 of 1] Compiling Main ( baby.hs, interpreted ) baby.hs:6:42: lexical error (UTF-8 decoding error) Failed, modules loaded: none. I am not able to advance any further, please suggest. -- thanks Vilpesh