Thank you for contacting Promethean.
Your case number is 00534005.
Dependant on the projector you have installed if it has a HDMI port I would recommend wiring a cable directly from the projector to the laptop.
If you only have a VGA connection then you would need a converter/adapter from VGA to HDMI.
If you have any further queries please do not hesitate to contact us.
Promethean Technical Support
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