Something's up with hat-2.05 on my system. It hasn't installed its package correctly. ./configure, make, sudo make install reported no errors, but trying to build using 'hmake -hat' produces this error: hat-trans goodFib.hs Creating directories Hat Wrote Hat/goodFib.hs ghc -c -package hat -o Hat/goodFib.o Hat/goodFib.hs ghc-6.6: unknown package: hat Running ghc-pkg list reveals that no such package is installed: LappyBob:~/Documents/Work/Hat test cases/goodFib tatd2$ ghc-pkg list /usr/local/lib/ghc-6.6/package.conf: Cabal-1.1.6, GLUT-2.0, HGL-3.1, HUnit-1.1, OpenGL-2.1, QuickCheck-1.0, X11-1.1, base-2.0, cgi-2006.9.6, fgl-5.2, (ghc-6.6), haskell-src-1.0, haskell98-1.0, html-1.0, mtl-1.0, network-2.0, parsec-2.0, readline-1.0, regex-base-0.71, regex-compat-0.71, regex-posix-0.71, rts-1.0, stm-2.0, template-haskell-2.0, time-1.0, unix-1.0, xhtml-2006.9.13 Any ideas why the package isn't getting installed correctly? Bob