[Haskell-beginners] Compiling

[Chris Saunders]

I have just started trying to learn Haskell again (I seem to have a mental 
block against this language).  Right now I'm using Haskell in 5 steps.  I 
have created the file hello.hs exactly as in the section "Write your first 
Haskell program".  I then opened a cmd (I'm using Windows) window in the 
directory where I created hello.hs and entered "ghc -o hello hello.hs". 
What follows is the output of the cmd window:

hello.hs:1:7: Not in scope: data constructor `PutStrLn'

Can someone tell me why I am having this problem?

Regards
Chris Saunders