Hi, I'm having a problem running ghci and loading the readline package on WindowsXP. C:\Software\haskell\ghc622\bin>ghci -package readline ghci -package readline ___ ___ _ / _ \ /\ /\/ __(_) / /_\// /_/ / / | | GHC Interactive, version 6.2.2, for Haskell 98. / /_\\/ __ / /___| | http://www.haskell.org/ghc/ \____/\/ /_/\____/|_| Type :? for help. Loading package base ... linking ... done. Loading package readline ... linking ... C:/Software/haskell/ghc622/HSreadline.o: unknown symbol `_rl_redisplay_function' ghc.exe: unable to load package `readline' I have seen the follow in the user guide: "For some reason, Mingw ships with the readline library, but not with the readline headers. As a result, GHC (like Hugs) does not use readline for interactive input on Windows. You can get a close simulation by using an emacs shell buffer!" but I assume I need readline as util needs it and util is needed by data which is needed by wxcore. Cheers Mark