I've been having sudden freezes on my trackpad. There is NO RESPONSE whatsoever after a few minutes of turning it on. Everything runs fine in the background - I run Paup* analyses in the terminal window - which just keeps right on going. And, I can awaken the mac as it goes to sleep by using the power button... it's just the trackpad that no longer works. the problem is pretty consistent. any ideas for a fix would be appreciated. thanks folks!