Oh oh, am having serious problems with Dragon Professional Individual (15) + Studio 2015

I'm not sure how many of you have already upgraded to the latest version of Dragon (Dragon Professional Individual, version 15), but I am having some serious problems using it with Studio 2015. when I try to dictate something, Studio completely freezes, both my computer and the program itself, and takes forever to insert my dictated words. I see a blue spinning thing, then everything freezes and I see some kind of empty text blocks. Is anyone else having this problem?

Michael

PS: I'm also running the latest version of KnowBrainer: 2017.