So anyway, I type "well-known" into Word and it underlines it in green, indicating that I used the phrase incorrectly.
I right click the phrase to see what Word doesn't like about it, and the correct phrase it shows is "well known."
Silly Word. I know that this is wrong, but I select it anyway to humor the program. But it apparently doesn't like the phrase without a hyphen either, as the green underline returns!
I click to check. Oh, you want me to add the hyphen back in. Of course. I do this a few more times, in order to ensure that I'm not going crazy, but Word just keeps sending me back to the other way.
I check in my handy-dandy AP Stylebook to make sure I'm correct, and I am.
But still. Word. Get it together.