My tibook has been having kernel panics (Both with the polite message telling you to shut down your screen, and the one where a bunch of code rolls down the screen and it freezes). Also the computer sometimes just plain freezes sometimes and it also just shutsdown randomly. What could be the problem? I don't think its the ram, i tried both sticks independently and it still happens, unless both the ram sticks are bad. -chris PS: How would i go about checking if my ram was within specs?