For now we don't put bible verses in the presentation so it's about 40 minutes between one song to the last song. During this time someone has to touch the mouse pad every couple of minutes or a blue screen will show up on the wall. Once that happens we can touch the mouse pad and it will put the presentation back up. Is there a way to lengthen the amount of time before it goes into a screen saver mode or could this be a projector problem? The presentation stays on the computer screen when this happens. The computer screen saver is set for 45 minutes.