Thank you for your email.
You can use a different projector with a Promethean ActivBoard as the projector controls the image for the interaction.
The issue you have described sounds like it is being caused by the projector, you have carried out all the steps we would ask you do.
We do offer a chargeable repair for the projector that may resolve the issue.
If you would like further details please do not hesitate to contact us.
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