I recently purchased the new rMB 1.2 512. So far I have been enjoying it. Using Word on battery, I notice it depletes pretty quickly. 20 minutes of work yesterday in Starbucks and I was down from 100% to 80%. Word was still open in sleep, a few hours later, opened it and it was at 67% in sleep mode. Battery shows Word was using the power. Is anyone else having this problem?