On this page: http://www.haskell.org/ghc/docs/latest/html/libraries/base/Dat a.Int.html the links to IArray and UArray point to http://www.haskell.org/ghc/docs/latest/html/libraries/base/Dat a.Array.Base.html#t%3AIArray which doesn't exist.

Not sure if this is a haddock bug or a missing file or what.

That looks like a bug - Data.Array.Base is hidden so we shouldn't get any links to it. Thanks for spotting it. Cheers, Simon