[Haskell-cafe] ghc on Ubuntu Linux?

Hello, I am running ghc and tools on Ubuntu. I seem to be running into very strange problems between ghc-pkg and the Ubuntu package manager. Suddenly "runhaskell Setup.hs configure" just stops working ... Are any other ghc/Ubuntu users running into problems? If so, please tell me what problems. This is killing my Haskell work! Regards, Vasili