Tap to click keeps disabling Recently the tap to click on my trackpad will disable itself after a restart and I have to go into System Preferences to enable it. Has anyone experienced this and know of a solution? 

I'm running Snow Leopard on a white MacBook (Mid 2010).
Open Terminal.app and enter the following to (re-)enable tap to click on the Trackpad:

defaults write com.apple.driver.AppleBluetoothMultitouch.trackpad Clicking -bool true


Then, log out and log back in again.