Mouse gestures is disable for no reason. Shutting down and reopening Solidworks makes it work again !
Is this a bug or I did something caused this problem?
I use Mouse Gestures often and have never seen this. It's almost certainly something weird going on with your installation. Have you tried a new Mouse? Have you contacted your VAR to see if they could track it down?
If you can see this toolbar on your screen deselect the option it works again
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