manual

13
English
5 If you find that the 3D content is not displaying properly, try selecting 3D
Sync Invert from the projector OSD or Acer e3D Management.
6 If this does not improve the image, change the 3D Format to match the
signal sent by your player.
Note: The "3D Format" is only available for HDMI 1.4 or 2nd
generation 3D projectors.