Hello.. Today I connected my macbook pro to my LED Cinema Display and the MagSafe connector's light was blinking like a hard disk's status light. Is this normal?... it's blinking rapidly like when the light of an external HD is showing the disk is in use. Something like that. I just checked the battery status in iStats and it's giving me a 91% healthe.. . How could that be if this mac is 6 months old.