Till last year, I was able to download successfully to my PC and later to my Mac and have done so ifor years. This year when I try to download to the Mac I get the message: This license code has already been associated with an account. Please check that account and look for it in Downloads. The download I already have is for Windows not Mac. The disk I bought is for PC and Mac.  Every year I get more frustrated with TurboTax behaving erratically or changing things that worked well before.