WAS awesome, but won’t open in Yosemite.

I LOVED this game—all the Quake series are classics. But even though it still downloads and installs in Yosemite, it won’t open. The start screen comes up (Open full screen or in window?), but neither option works. A quick flicker of black screen, and nothing. Ive uninstalled and reinstalled to verify.

Matthewokc about Quake 4 ™