Actually, Rayraz is right. Just turn off the monitor manually. But the other people have a point: turn off the screensaver and the standby mode. The way Windows work, it doesn't matter whether something is working on the processor, it's whether anything's moving on the screen that triggers both the screensaver and the standby monitor. And the line that moves over the picture apparently is not considered monitor action. Been there, done that. Yep, stupid, but that's Windows. Screensaver will ruin your render time something awful and the standby mode can be a pain in the posterior, too. BTW, turning off the monitor will not prevent the screensaver from starting. Ang, minimizing Bryce puts it in the background. Raises render time, too. It's okay for a short work, but...

-- erlik