Go into your Control Panel -> Programs and see if you have the Asus Smart Gesture installed. Since you're having this issue with the gesture shortcuts, I'm assuming you do. If so, go to your task bar in the bottom right and there should be an icon for the Smart Gesture program. It will look like a track pad. Double-click to open it up and you should be able to configure all your "smart" Gestures and Windows 8 gestures.