We have a few people who cannot play our game using older Intel I7 900 series CPUs. Unity doesn't seem to load the game, no log files are even generated which means Unity isn't even running before it quits. One user posted this "The NVIDIA OpenGL driver has not been able to initialize a connection with the GPU. This might be due to out of memory error, an exhaustion of system resources or too many graphical applications running. The application will not render correctly." Our game End Space is VR only, however it seems older versions of Unity support VR and these older CPUs as the users have reported no issues playing other games made with Unity.