On my desktop, I suddenly get only drop down menus when I click on an icon. and then I can't click inside the icon except with the keyboard. I took my mouse to an authorized Apple dealer and it was deemed to be perfectly fine. (A few days left under warranty so it's a pretty new machine.)
iMac 24″, macOS 15.6
Try to right-click on an icon (instead of left-clicking). Does it work? If so, go to System Settings > Mouse and make sure Secondary Click is set to "Click Right Side".
The Secondary Click is properly set. Contacted Apple and they tried everything, then decided it was a software problem and we reloaded Sequoia. So far it works properly "most" of the time, but not 100%, so it's a bit weird that way. May be a sticky contact in either the mouse or the keyboard. But everything is set up properly. Thanks.
Desktop only shows drop-down menus when clicking
