i got the first kernel panic error near the end of may. i just restarted it normally and it seemed normal for a couple days. on may 30 i got 3 kernel panic errors. after each of the first 2 i rebooted in safe mode, then rebooted normally and the computer operated normally for a few hours. after the last one it wouldn't boot at all. i could hear (the drives) start spinning and the little light came on the front, but after a few seconds (the drives) would stop spinning, the light would go out. then a few seconds later the process would repeat. i let it continue for a few minutes before unplugging the power and letting the battery drain. my wife took it in to an apple store to get it checked out a couple weeks later. she said they plugged it in to one of their power adapters and it booted up normally on the first try after just a few seconds of charging. that was the end of their troubleshooting..they told her to charge the battery... i tried to boot it up when it came home, using two different power adapters (both less than a year old) but had the same results as before taking it in. we use both power adapters on our other older macbook, with no apparent side-effects. haven't had time to take it in again and try it on theirs again..... any suggestions? i can't give much more info.. i bought it just over a year ago from a mac store in south korea. on the bottom it says 2009. it's a solid bottom (meaning i can't see the battery). it was running snow leopard and was fully updated, though i can't remember if i'd done an update recently.