I seem to be having an interesting issue: Every time I move the mouse cursor to the right edge of the screen, or run it over the little windows icon in the bottom left corner (this is Win 8.1, by the way) the computer locks up. The cursor disappears, keyboard stops working, etc.
After about a minute or so, the cursor reappears, and about 10-30 seconds after that, starts working again normally.
And it's fine, I can go hours without any problem, as long as I keep the cursor away from the right-hand edge of the screen, and away from the Windows icon. The screen-edge thing doesn't always do it (which was typical of 8.1, you could never get the pop-up control panel to come up when you wanted it) but scrolling over the Windows icon at the bottom left does it every time.
Other than that, the computer seems to be functioning normally. Any ideas what's wrong? (Other than the fact I'm still using 8.1 )