3-finger 4-finger multi-touch gestures/Expose not working after upgrading to Snow Leopard
I don’t know why, but after transferring my account from my old Macbook to the new one, 3-finger and 4-finger multi-touch gestures stopped working (in Snow Leopard). To solve this, just reset the PMC. The following procedures is for Macbooks which have internal batteries.
- Shut down your computer normally.
- Press (only once and shortly) left shift + left control + left option keys and the power button.
- Wait 5 seconds
- Turn the computer on. The sleep light should blink shortly.
After doing this the 3- and 4-finger gestures started working again.