Okay, I finally got the Yahoo browser toolbar to show up. Apparently,
there's a feature on here (which I found by accident, BTW) where you
can "hide the toolbars". Which is ridiculous, if you ask me.

As for the rest of it, I'm going to ask my SIL to take a look at the PC.
It's just hard to know what the problem might be without actually
looking at the computer screen, y'know?

Thanks, everybody!