But when I hover over a hyperlink - both mouse cursors change to show a hand cursor. Its location never changes on the screen. So basically, I have two mouse cursors on my screen. But then I noticed there was already a mouse cursor just to the left of the Recycle Bin! How did that get there?! I woke up, signed in, and went to empty the Recycle Bin. I noticed there were like a billion pending Windows Updates ('cause 8.1 was released so long ago) and so I installed them all while I was sleeping.
I bought a new PC yesterday, and it has a fresh install of Windows 8.1 Pro.