Hello, could you answer the following trivial question: WinHugs does neither understand map Char.toUpper "cCcC" nor map toUpper "cCcC" although I read that the latter is the hugs-version for the former, which works fine under GHCi. Thank you very much in advance, Christian -- Echte DSL-Flatrate dauerhaft für 0,- Euro*. Nur noch kurze Zeit! "Feel free" mit GMX DSL: http://www.gmx.net/de/go/dsl