Since updating the latest beta version, my screensaver no longer works. I typically use "span multiple monitors" but even with separate settings for each monitor, the same thing happens: I get black screens with the Windows cursor and blue spinner next to it. And the only way to kick out of this mode is to use Ctrl-Alt-Del after which I'll see my desktop briefly and then the expected Ctl-Alt-Del screen, which I can then ESCape out of to get back to my desktop.