[UPDATE] AND IT AND THE MOUSE JUST FIXED ITSELF. BECAUSE APPARENTLY MY COMPUTER IS MESSING WITH ME.
My USB hub just apparently died, as did two mice in rapid succession. Given that the USB ports on my computer break if you look at them hard enough, this has been a kind of annoying last hour trying to get at least a mouse (the third, and half-broken one) and speakers hooked up.
Yes, FirstWorldProblems. Still, I banged my head on the underside of the desk, and hey! My blog, so I can grumble about this if I like.