[Haskell-beginners] haskell_doc.vim on Windows won't recognise g:haddock_docdir

Hi, Does anyone have any experience setting up haskell for vim on Windows? let g:haddock_browser = "C:\Users\Tom\AppData\Local\Google\Chrome\Application\chrome.exe" let g:haddock_docdir = "D:\tools\HaskellPlatform\2012.4.0.0\doc\html" in _vimrc the browser is getting recognised but the docdir isn't (or doesn't seem to be). Has anyone seen something like this (the problem or me making an obvious mistake?) Thanks Tom