I have a black macbook that I have had for the past 3 years. A week ago it randomly shutoff when unplugged but worked fine when I plugged it back in. I searched online for the battery problem and the one with X's and none showed up. It works fine when plugged in but the battery does not charge (check the battery status and it is good). Brought it to the genius bar.. nothing (tried the reset thing and a different battery). So quick story short, am I better off getting a new macbook or possibly bringing it in and getting the SMC (?) replaced? Heres a screen shot when I check the battery status: thanks!