Broken Cabal on Windows

Hi I've got Windows, GHC 6.6.1 and I just tried to upgrade Cabal. Now Cabal is totally broken on my system.

From the Cabal directory: $ darcs pull $ runhaskell Setup configure $ runhaskell Setup build $ runhaskell Setup install

All completed with a nice pile of warnings, but no errors. Then from any other Cabal package directory: D:\sources\temp\catch-0.1>runhaskell Setup configure <interactive>: C:\Program Files\Haskell\Cabal-1.1.7\ghc-6.6.1/HSCabal-1.1.7.o: unknown symbol ` _Cabalzm1zi1zi7_DistributionziCompatziFilePath_slash_closure' ghc.exe: unable to load package `Cabal-1.1.7' Obviously this breaks Cabal entirely on my system. Thanks Neil