Thanks Eagle51. After I unchecked On Resume, display logon the 1 minute box went gray and the other Power settings to work fine now. Originally, I only attempted to change the log-on background...

Recently, about time of last update, my W-10 Pro on a Dell xps8920 desktop began logging me out to black screen after approx 60 sec of inactivity - continuously. I can tap L mouse & return to...