ok..bought this MBP past month nad no problems...but yesterday i took the power cord out cuz i was about to use the laptop in my room...but guess what happened it turned off... what happened...i tried to turn it on but nothing worked out..i connected the power cord...and i rebooted...then i saw the little X in my battery menu bar.. thats means that my battery is not connected... but it is...i turn the MBP of.. took out the battery and reintall it...but nothing...my MBP only works qith the power cord plugged in... it doesnt see my battery.... like... if i was working without it.... HELP.!