I am a Finale user, and it was recommended I switch to Dorico, so I got the $199 competitive upgrade. When I installed the included instrument engines, suddenly my Digital Performer 11 DAW went crazy, nothing worked. When I deinstalled the Dorico instrument engines, Digital Performer went back to performing.

So I am reluctant to reinstall the sound engines.

That said, I am prevented from using Dorico until I do. Please advise.