Rogan: Again, thanks very much for your reply. My situation is that I need to be able to use Cabal (and the Haskell Platform, Gtk2Hs, etc.) at any of several PCs in a (Windows XP) LAN, each of which has access to the network drive H:. So, I am using: H:\proc\tools\Haskell Platform H:\proc\tools\gtk H:\proc\tools\cabal (hopefully) etc. So I need to not use C: for anything related to Haskell tools (although temp files would be okay I guess), and have everything in the H: tools tree, so that new versions of Cabal, Haskell libraries, etc. get installed to the appropriate dir on H:. I will try experimenting with editing the config file and using that hidden option you mentioned. ** Cabal experts: If anyone knows how to do this sort of thing in a better way, I would appreciate a word. Thanks much, -- Peter