DPI Problem in Lightburn

Im getting this error message:

Your DPI setting is over 1000, and very few lasers are physically capable of this.
500 DPI is the highest most CO2 lasers are able to achieve without customized lenses.
Did you intend to set it this high?

When I go to the Cuts/Layers box the DPI box is not highlighted and won’t allow me to change the DpI

if it’s an image file, unselect passthrough.

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