I've had my mouse for some months with no problems and the attached custom gestures in my thumb's button. A few days ago, I noticed that, even with the custom commands still working, at the same time the button now behaves like if it had the "navigation" gestured enabled. Per example, when I click on muy thumb button, it executes the "copy" command, as well as the "app exposé" one. When I do the right gesture, it plays/pause my song AND switches between desktops. It's so strange