I suspect I will end up ordering one, then. Thanks for the quick reply, Alex. Sean, there are clearly multiple cases of this occurring - any ideas what changed in the update and if there is a software setting to remedy this as opposed to needing a physical dongle?
Alex - did the emulator resolve this for you? I am seeing the exact same issue. All was working normally, then I left for a few weeks of vacation, return home to a lot of Win10 updates on both PCs, and now, my secondary machine MUST have a monitor plugged in, or the primary gets a black screen. The connection stays active, but the screen is black. Key strokes still transmit to the secondary from the primary. There is just not video appearing to the primary -