![]() ![]() The Apple keyboard is plugged into a rear-of-the-iMac USB port. The connections are this: Apple Mouse to one of the side USB ports on the Apple Keyboard. I have even tried switching out the Expert Mouse altogether, replacing it with the original wired Apple Mouse.no joy. It is doing this as I write this - and I am using the default Apple Mouse driver. Then the stutter motion started up yet again. I re-booted yet again and all was right with the world - for a while. Then the mouse pointer began displaying that jerky-jerky, stutter motion again. What remained was the native Apple Mouse Drivers. Anyway, my experimentation entailed completely removing all things Kensington, then I re-booting. I wasn't sure if the problem started with the Mac OS upgrade to 10.15.3 or the Kensington upgrade to 2.1.11. I mistakenly upgraded my Kensington wired Expert Mouse to their latest software (upgraded from, I believe, TrackballWorks v1.5.0 to the 'new-and-improved' KensingtonWorks 2.1.11). My iMac (Retina 5K, 27-inch, late 2015), 3.2GHz Quad-Core Intel Core i5, 24 GB 1867 MHz DDR3 RAM with the OS: Catalina OS version 10.15.3. Such completely hidden functions are the epitome of a bad UI (user interface). The last time I saw anything like hidden basic functions was trying to format a drive on a MS Windows computer (had to right-click on an empty box). Restart your Mac, then see if your device options appear and/or functions restored.Įpilogue: I have no idea when that hidden function vanishes and a reboot is required to see it again (I have my limits on tolerating the troubleshooting of bad design decisions).It doesn't appear you need an admin password to select the option. At the bottom of the window, you'll see a magical (hidden) list of legacy items.I know, it's the last place you would look. Once your Desktop shows, immediately go to System Preferences -> Security & Privacy.Logitech's support was no help felt ignored.Īn obscure suggestion from 2 years ago, mentioned this. The "Logitech Control Center" showed "No Device Found" and I was totally flummoxed why a USB mouse isn't being recognized (my main reason not to have batteries). I needed the scroll wheel and extra buttons for numerous reasons in graphics design. I have a Logitech wired M500 (hate batteries) and I was baffled why such a basic and popular item wasn't being recognized (other than standard mouse functions). ![]() Especially if it happens just after an upgrade, such as High Sierra. There is a possible, yet frustratingly simple, hidden solution. ![]()
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