I want to stress just how annoying this missing feature is becoming. I connected a Roku to one of the ports on my computer monitor, so I could watch something at my desk when someone else is watching the big TV. Now I have to turn that monitor off every time I put my computer to sleep, because the Roku takes it over and keeps it from going to sleep too, like it used to. The fact that people went to the trouble of creating "black" screensavers shows there's an interest in having the monitor go blank instead of doing a slideshow. Why not let us do it "right"?