hi, I really appreciate the amazingly fast and helpful feedback to my previous message. that problem (FiniteMap not found) is solved. but a new problem came up... I am trying to compile paradox 1.0, an older (GHC 5) Haskell program, with GHC 6.6.1 (the Solaris 10 / x86 binary distribution). now I get the error Data.hs:760:20: Not in scope: 'bounds' Data.hs is one of the files in the program. here is the nearby code: updateTable :: Hash a => a -> IO b -> Table a b -> IO b updateTable x my (MkTable ref) = do MkHTab n arr <- readIORef ref let (_,size) = bounds arr hashx = hash x i = hashx `mod` size ... in case it's helpful, the entire paradox source code is at http://www.cs.sunysb.edu/~stoller/out/paradox-1.0-casc.tar.gz just delete "-package lang" from the Makefile before running "make". any advice would be greatly appreciated. best regards, scott