Well, I am a little disappointed because it appears that my 5 year old computer is an antique. It may be that I can not run the Authorized Steinway. The only problem is clock speed. My ancient clock is only 1.8 GHz, whereas the specs require 2.8 GHz. For the basic version, my system is otherwise okay. But it is stll unclear to me what all the differences are between versions. Can anyone provide some thoughts on the matter? Buying a new computer is not a consideration.