This really smells like a violation of the "monomorphism restriction"[1]. Try again with -fno-monomorphism-restriction, and if that fixes it, add a type signature to fix it for good.
[1] http://haskell.org/onlinereport/decls.html#sect4.5.5 Stefan _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe