Hardware: 15" MBP, 1.83 GhZ, generally flawlesss in performance. Problem: Battery is not charging. Observations: When adaptor is plugged in, the light is green. The battery is only charged to 83%. In the menubar, the battery portion of the display is stuck on (Calculating...). It's not running hot or any other warning signs, the battery simply won't charge up. I can run it off the battery just fine. I haven't done anything weird or put any strange programs on it, except for running Software Update a couple days ago (the ExpressCard update downloaded). Thoughts, theories, help?