Short answer: That is not a supported use.
(in other words, do not expect it to work or expect any help)

The long answer is that many of our users have been able to successfully accomplish this, by using darker colored projected images and turning the brightness way down on the projector.

LASR works by detecting light:
• Projectors and TVs emit light. We are sure you can put two and two together here.
• Moving targets or motion video is not likely to work well, as the light conditions are constantly changing in that image.

LASR is not built for this use at all, so it will not project the hit locations on the image, or take a snapshot of the screen, etc, so it is not really a practical use, even if you do get it working.

Working with a projector is something that we have looked at quite a bit, but we can tell you that there are no real plans to pursue this route. No projector is actually one of the major selling points of LASR. It provides easier setup and use, lower hardware costs, simpler, more reliable, and more flexible shot detection, and more focus on actually enhancing training value in reference to raw shooting skills.

There are a number of companies that have been around for some time that offer projector-based systems, and they typically run from $2,000 and up. They include one or more of the following attributes: Not very user friendly, require a lot of setup time and work, don't work reliably, and require you to purchase special hardware.

Given the added complexities when a projector or screen is added, the smaller market due to hardware costs, and the inherent loss of user friendliness, we would have to charge a similar amount, and would likely end up with the same problems. Our main focus for the future is improving the base software, and adding more functionality through plugins.