Code hinting cannot be turned off

In my code window, DreamWeaver insists I need code hints, for all of PHP, MySQL, and HTML (in .php script pages). This makes it almost impossible to code, as all I am doing is continually clicking "elsewhere" to make the code hint thingy go away, so I can type what I already know I want to type. (Believe it or not, I can actually spell mysqli_fetch_array all on my own. And, golly, I know what its arguments are, too!)

This forum says, and the tutorials say, I can turn off code hinting in Preferences -> Code Hints. But I have "Enable code hints" unchecked, doggone it. And still the code hinter is convinced I need its help. ("Some kinds of help are the kinds of help, we all can do WITHOUT!" -Marlo Thomas)

How do I *really* make the madness stop? Exclusively use a third-party editor?

Mac on OS 10.12.6 and also on 10.13. Dreamweaver 2017.5 Release, 9878 Build.