L.S., The holidays a good time to do something about the Haskell entries for the Computer Language Benchmarks Game. I made the Mandelbrot entry[0] a bit smaller, see the attached file. I removed superfluous imports, type declarations and all bangs (except in the line "data T = T !Int !Int !Int !Double"). Both with and without bangs, there is a memory leak; in both cases, the run time is the same (tested on Windows 8.1, GHC 7.8.3). If no one knows any further improvements, I will submit my version to the Benchmarks Game. By the way, would it be a good idea to create a public (Darcs) repository for the Benchmarks Game entries? Regards, Henk-Jan van Tuyl [0] http://benchmarksgame.alioth.debian.org/u64q/program.php?test=mandelbrot&lang=ghc&id=2 -- Folding@home What if you could share your unused computer power to help find a cure? In just 5 minutes you can join the world's biggest networked computer and get us closer sooner. Watch the video. http://folding.stanford.edu/ http://Van.Tuyl.eu/ http://members.chello.nl/hjgtuyl/tourdemonad.html Haskell programming