I bought a MBP on 24 May. On the 30th I took it back and swapped it for a new one, because it had a line across the screen. The Genius transferred all of my data onto the new one. My battery isn't holding nearly as much charge as the original machine. I downloaded Coconut Battery and it says that the machine is 2 months old, the current capacity is 5552 (orig 5770), and after 6 cycles it was at 95% of original capacity. This seems like a really quick drop off. I calibrated properly and all... don't want anything to go wrong with this machine. I'm moving to Haiti in a couple of weeks!