Can you clarify this? Are you still suggesting using a default value for all the existing one parameter calls to this? If so what is the default value?

Also there will a number of places duplicating this logic:
```
  RESOLUTION_INFO info = CDisplaySettings::Get().GetResolutionInfo(res);
  (info.dwFlags & D3DPRESENTFLAG_MODE3DTB) ? RENDER_STEREO_MODE_SPLIT_HORIZONTAL : 
  (info.dwFlags & D3DPRESENTFLAG_MODE3DSBS) ? RENDER_STEREO_MODE_SPLIT_VERTICAL : RENDER_STEREO_MODE_OFF
```
(wherever false was previously being passed in). That is what you intended?