Kojima Productions released a new patch a few days back that aims to address three major issues currently affecting the game:
When the Camera Y Axis is set to Reverse, the camera movement with the mouse will reflect the change
Under some conditions, there was a "Low Memory" error a few minutes after launching the game. This issue has been fixed.
When some USB devices were connected the game didn't launch. This issue has been fixed
You can download the update by installing a new version of Ground Zeroes that's available to people who opt-in to the Steam Client beta...You can do this by right-clicking on Ground Zeroes in your Steam Library, selecting Properties, then the tab for Beta
When the Camera Y Axis is set to Reverse, the camera movement with the mouse will reflect the change
Under some conditions, there was a "Low Memory" error a few minutes after launching the game. This issue has been fixed.
When some USB devices were connected the game didn't launch. This issue has been fixed
You can download the update by installing a new version of Ground Zeroes that's available to people who opt-in to the Steam Client beta...You can do this by right-clicking on Ground Zeroes in your Steam Library, selecting Properties, then the tab for Beta