I have updated from mixcraft 5 to mixcraft 6 but the piannissimo asks for registration.This had also happened in mixcraft 5.After some days the piannissimo stops working and asks for code. Mine is a valid mixcraft 6 and why yhis ? If i go to help menu then there is no registraion active link.Still the piannissimo does not work. I then put the cd in my PC and ran the software. Then it comes ok but after some days again goes blank.