My generic Dell mouse behaves pretty strange compared to all other mice I have used with my MacBook. Almost every single-click is treated as if it were a double-click. Both the right and left button. The same mouse does not exhibit this behavior under Windows nor Ubuntu Linux.
I have searched and found hints that I should reduce the double-click speed setting in System Preferences: Mouse. But the setting is already as low as it can go.
I find this mouse very comfortable and want to continue to use it. I hope someone can offer another suggestion on how to correct this odd behaivor.
Best Answer
Unless this mouse behaves differently on a different computer, I would say that the mouse is bad.
I work for a company that uses Dell almost exclusively, and I can tell you that this is exactly what happens when the mouse starts failing. They begin intermittently processing single clicks as double clicks.
We throw them away when this starts happening.