7.4. Green/Pink Screen or Flickering?
When your projector/TV is flickering, or displaying a green/pink tint, this usually means there is an issue with an HDMI connection. Find your switcher, unplug all of the cables, then plug them back in where they were. If this doesn't fix it, unplug and replug the HDMI from the source device (Apple TV, Computer, etc.).
If the above does not work, there may be a faulty piece of equipment. Create a help request and we'll assist you.