Sometimes I can get easily distracted. When a church has a projector and has nothing to put on the screen, please just use a blank black slide. Do not just put a picture of a dove, or an animation of a waterfall just because it looks cool. It is distracting. Just because you have a projector does not mean you have to use it all the time. A good blank slide gives my eyes rest and helps me focus on the preacher. When there is random stuff on the screen, my eyes go to the screen and not the preacher. A black slide will make the projector emit the least amount of light possible, short of turning it off. It makes sure I am not pulled away from the preacher towards the screen.