Hi, I'm actually facing the same problem! I worked last night and put my laptop in sleep mode on 90% and very next day it was not turning on or coming out of sleep mode. I plugged in the MagSafe adapter and the laptop started normally. My desktop showed a cross on my battery icon which confused me for a second. I took off MagSafe and shutdown my laptop properly. I reconnected the MagSafe and turned the laptop on again. It showed the same problem with MagSafe LED green and cross on the battery icon but suddenly it responded! Showing the battery percentage 83% and MagSafe turned Orange. It was a sign of relief for me not for more than 4 hours because when I turned my laptop on again. The problem came back and since then it's working, I went to the Apple experts and they tried their best and couldn't fix it and gave me a contact of their professional expert in another city... So I might be meeting him tomorrow for this problem. If any one knows about how to fix it please let me know so that I could save my...