Running Zwift on a late 2009 27" iMac i5, 12GB RAM, ATI Radeon HD 4850 512 MB.
Have used Zwift previously on this mac but not for a long while.
Reinstalled last night, started Zwift and after clicking “Ride”, the music starts, Zwift startup screen appears to minimise (I see it collapsing into the dock), and then the computer locks up completely. I just see my regular desktop, the music continues to play and the mouse moves, but the computer is completely locked out.
I can’t quit the app, I’ve had to hold power button in each time to power down. I’ve even updated from El Cap to Sierra and it’s the same.
Any one had any similar issues?