got my brand new 15" pb BTO (upgraded to the superdrive) last thursday. absolutely loved the thing and especially the OS! i felt really good about making the switch from PC to mac. but then things went sour...monday night i closed the lid on the pb and reopened it later and it wouldn't start. eventually i got it to start and kernel panic popped up. i tried restarting the machine again, and all i got was a black screen and 3 beeps. from what i read, this is a memory problem. the more reading i've done has suggested a logic board problem that seemed to haunt previous revisions of pbs and ibooks. i called customer support and they're sending me a box to send it in. i just hope that when they fix it that they don't cause any more damages like i've read in other posts. has anyone else had logic board problems with their new rev. D pb? and why hasn't apple fixed this problem yet?!?!?! and will my 90 day support window restart when i get my pb back? thanks.