I just installed Sonar Platinum and what seemed like a blink of the eye it was done. The only problem was when I initially tried to  register it, my previous X3 Sonar serial number was not recognized. A quick call to Cakewalk fixed it. I have an email address that I normally use for stuff like this and my consulting companies email. For some reason I had used the latter on one communication to Cakewalk and it stuck even though I used the former for my account. Cakewalk made it all better and it was "On with the show".
 
Great job Cakewalk!
 
Walt