We've all heard about Macbook's suddenly shutting down. What about a MBP that suddenly goes to sleep? I was just sitting here, putzing online, when my screen went dark and the darn thing started snoring! Anyway, I think my battery just needs to be calibrated. I don't know what it was reading before it shut itself down, but I never got the "reserve power" warning. When I plugged it in and turned it back on. The battery indicator showed 0%. Anyone else ever had this problem?