So, I installed Leopard yesterday and everything is running well except that for that the keyboard on my macbook pro sometimes randomly decides not to work for about 30 seconds. It's really irritating. As far as I can tell, I haven't done anything to cause this to happen- num lock is off, im not in an application that doesn't allow the keyboard to be used. Any ideas on why this might happen? Or a fix? edit: sorry, I re-posted this on the OS X help forum.