How accurate is the video projected image in your sanctuary? When setting up a projector, there are a number of factors that affect the accuracy. Focal length of the lens; size of the screen; distance to the screen; video resolution of the system feeding the projector. All are important, and have an effect on the resulting image quality. If the image looks like a trapezoid, then you can adjust the “keystoning” to compensate. But be sure your projector remembers this setting – i.e. even when the power is off. Otherwise, you’ll have to do it every week for worship.