Years ago, I download Komplete Kontrol Start. And then moved on to 12 select, 12 ultimate upgrade, then, lastly to 13 ultimate upgrade. At least that's what it says in my account info under registration and serial numbers. I won't bore you with the reasons why I haven't been involved in my music in the last couple of years. Now that I am setting it all up again, I wanted to upgrade to 15 ultimate. On my Mac, I went from Applications—> native instruments—>Komplete Kontrol—>Komplete Kontrol. When I used to click on Komplete Kontrol, 13. Ultimate used to open. To my amazement, when I clicked on Komplete Kontrol the other day, Komplete Kontrol start opened. 13. Ultimate is nowhere to be found. Native Access still shows all of my plug-ins. So how do I upgrade if there's nothing there. Am I gonna have to pay $600 for 15 ultimate? Any thoughts of greatly appreciate it.