My interactive pen doesn't work. What should I do?
Try the following:
Recalibrate your pen.
Make sure nothing is blocking the signal between the pen and the interactive pen receiver on the projector. See Projector Parts.
Make sure the pen batteries have enough power. If the light on the pen doesn't turn green when you press the button, you need to replace the batteries.
Dim the room lights and turn off any fluorescent lights. Make sure the projection surface and the pen receiver are not in direct sunlight or other sources of bright lighting.
Connect the USB cable directly from the computer to the projector, not through a hub. Make sure the USB cable is securely connected to the projector and computer. Try disconnecting and reconnecting the cable to your computer.
From your operating system's Display utility, select Settings > Advanced > Troubleshoot, and set Hardware acceleration to None.