[Haskell-cafe] Haskell Platform - changing the global install dir

I've installed the Haskell Platform to a non-default location (D:\Apps\Haskell) to avoid some of the Win7 funniness over writing to C:\Program Files. However, even though I've done this, the cabal global install directory is still C:\Program Files\haskell. This has been added to my PATH and is used by default. Is there a way I could have specified that I want the global install directory in D:\Apps\Haskell? I guess I could hack my cabal\config file (and presumably change PATH) but that seems a bit ugly. Is the use of Program Files even when the install was to somewhere else a bug? It's not a big deal - I can easily stick to user installs for now. Thanks, Paul.