I see the message You cannot perform operations on the specified screen... when I select Multi-Projection in Easy Interactive Tools. What should I do?

• This message can appear when two projectors are set up side by side as extended desktops. Try the following:

  • Set both projectors to the same resolution. Go to the graphic card settings and make sure both projectors are set to Scale (Windows only).
  • If you have a video scaler between the computer and the projectors, make sure the scalers are sending a signal of 1280x800 WXGA, 1920x1200 WUXGA, or 1920x1080.
  • Make sure you are using two like projectors.
  • When you are configuring your monitors in the graphics settings, make sure the displays are physically the same height and size.
  • Make sure the secondary display is placed on the right of the primary display.
  • Select Apple menu > System Preferences > Mission Control and select Off for each display (Mac only).