dianafromtalent wrote:
Ryan and I went through everything under pointer and mouse in Accessibility and System Settings. Nothing on that shouldn't be on.
But what is on?
I don't use a trackpad as this computer refuses to recognize it.
Really? What kind of trackpad?
I used an optical mouse, an old magic mouse, and now a brand new magic mouse.
Ah, now we're getting somewhere.
What you're describing is horizontal scrolling. Horizontal scrolling is rare because it's extremely annoying. But most people never see it. They don't see it because they're using modern trackpads. People using mice are much more likely to see it. A few years ago, even connecting a mouse would cause scrollbars to appear everywhere. Apple seems to have fixed that, but there are still some settings that can make them appear.
When they do appear, in a specific "old style", they change the dimensions of the screen. The vertical scroller appears and makes the text view about 16 pixels smaller. That, in turn, triggers the appearance of a horizontal scroller. That would explain why your text, and only your text, is sliding left and right. And it would affect virtually all text in any app.
There are two places to check. First, in System Settings > Accessibility > Text > Text Size. Make sure this is set to "Default" and all apps to "Use preferred reading size". Apple is run by 24 year-olds with excellent eyesight. They think 6 point font is just da bomb, or whatever they say these days. You have no choice but to live with this. If you can't see the text, buy some high quality readers. I recommend Scojo Gels.
But the more important setting is System Settings > Appearance > Windows > Show scroll bars. This must never be set to "always". I recommend "when scrolling". I normally don't use a mouse. The setting "automatically based on mouse or trackpad" used to be the setting that would trigger this problem whenever a mouse is connected. This doesn't seem to happen anymore, but there's no way to tell on your computer. Try both settings and see which one works best. Just don't choose "always".
If you can't get the scroll bars to work normally, then get a Magic Trackpad. If an Apple trackpad won't work with your new Apple computer, then that's Apple's problem. Make them fix it.