I just did an update to the drivers for my dual Radeon RX 580 cards to the latest version, and now my Windows Screensaver is not coming on. I've cleaned my mouse just in case something was interfering with the optical sensor, and still nothing. No programs are running other than the normal background items. Not sure if this is a bug or is there something that got added in the latest software patch that overrides Windows. (Yes, kind of a dumb thought, but I can't seem to find another reason.)