Try the following solutions:
- Make sure you connect the projector to a computer using the projector's USB TypeB, Computer, or HDMI port to display video.
- If you connected your computer to the Computer or HDMI port, also connect a USB cable to the projector's USB TypeB port and to a USB port on your computer (for wireless mouse support).
- Make sure your computer is configured to work with an external USB mouse. See your computer documentation for details.
Note: The wireless mouse function is supported on Windows and Mac OS X systems with a USB port.
Related references
Using the Remote Control as a Wireless Mouse