Maxflyer

Greetings. I decided to try 3D Coat a few days ago and really liked what I saw. I decided to purchase the full version today. Now when I try to paint anything, 3D Coat shuts down immediately. I'm on a Mac running Yosemite 10.10.4. I downloaded the 30 day trial of 3D Coat and registered with the serial I received after purchase. I'm downloading 4.7 now just in case that's the issue. If not, any ideas?