Hi, Just got my new MBP 2.4, 4GB, 250 @ 7200 rpm about a week ago. Love the computer, but i've been having a problem with the computer not waking up from sleep. Probably half a dozen times I have opened the computer up and gotten a blank black screen. Then nothing. It has forced me to hold down the power button to restart. Has anyone else had this problem? Never happened with my old titanium powerbook...