Even better, Onyx fixed the problems even though I had no idea of how to use it. They couldn't help me, either so, having nowhere else to go, I tried Onyx, and not only did those two problems disappear, but also another one that I had resigned myself to.
I had had a couple of problems that they couldn't help me with, so I called Apple Care. Anyway, I used Onyx WITHOUT THEIR PERMISSION, and it worked. I had assumed that Apple Support Communities would be against Onyx, because they are against everything that doesn't come from Apple, and they like to argue too much for my taste.
