Well, removing the notebook didn't work. But, I ended up doing two other things. I went into device manager and under the USB hubs properties for Power Management, I unchecked "Allow this device to wake the computer ". I then did the same for my MS Mouse and Keyboard Wireless receiver - which uses USB too. Then I went around to the rest of the computer in the house and removed them from the Homegroup. I just got back from the dog taking me for a walk and my system was asleep. Surprisingly, pressing the space bar on the keyboard woke it up. So I will probably join the other computers to the homegroup tomorrow and see what happens. According to what I've been reading (thanks to leads through SWDr's link) adding computers to the homegroup after 8.1 is installed isn't a problem. We'll see.