After a long hiatus (having switched over hugs/ghc due to the *need* for rank2 polymorphic types -- hint, hint). I'm now trying to use nhc98 to compile a program that could make use of some of the Hat tracing tools. However, I'm not getting very far: Problem 1: When compiling Func.hs: module Func where import Prelude hiding ((&&),(||),not) ... I get this: nhc98 -c -o Func.o Func.hs ==================================== Error when renaming:: Identifier Prelude.&& used at 14:24 is not defined. Problem 2, when trying to compile for tracing: nhc98 -T -c -o LocalLib.T.o LocalLib.hs Fail: The class Prelude.Enum has no instance for the type Prelude.R. Possible sources for the problem are: 9:6 BTW, Are the "14:24" and "9:6" messages attempting to refer to line and columns or something totally different? I'm using the rpm for RH Linux of version 1.10. I can certainly provide more information if that's needed. Thanks. - Mark