Double clicks when I just want single click
So I just moved over to a new Mac Studio with Ventura 13.2.1. I'm getting double-click behavior *sometimes* when all I want is a single click. I have slowed the double click speed down to its slowest setting (slider at leftmost) in settings->accessibility->pointer control, and I have the same issue whether I'm using an Apple Magic Mouse or a Kensington wired trackball (so I know it's not the device). Super annoying; I'll click on a file to get some info about it and it starts to open, or I'll single click on some parameter to modify and it'll act like I double clicked it.
Any thoughts about what else I can try?
TIA!
rich
Mac Studio, macOS 13.2