I unfortunately do not have a backup of the game available.
Is rendering on both Vive screens disabled on X-Plane's software side or does the GTX 770 literally not support single shot rendering of both screens (the latter would surprise me considering games like Aerofly FS2, Arizona Sunshine, Assetto Corsa run fine)? In the former case, is there a way to bypass this by modifying some config file? Thank you in advance