Hi
 I'm trying to create a calculator in Haskell, something like the one in the enclosed image. To program the gui , I thought i might use a toolkit such as wxHaskell to create the buttons and frame etc.. I followed all the instructions on the wxHaskell homepage and everything seemed to install properly. Next I tried to use it with ghci, but to no avail.  It seems you have to register wxHaskell with ghci by using a command like <ghci -package wx> but that crashes . Every tutorial I read didn't work. Does anyone have a clear set of instructions,that does work? Also, is there a better toolkit for doing guis than wxHaskell?  I tried Glade, but it's so bug-ridden I couldn't get anything done. I need help.