Hi! So I'd read some previous threads about people having similar issues, most of which led me to head into the store to get service (alas I'm back to the forums): I have a: - Macbook Pro 15-inch, late 2008 - 2.4GHz Core 2 Duo - 4GB 1067 DDR3 (upgraded original w/ 3rd party RAM) My original battery stopped holding much of a charge after two years or so, but I finally replaced it last year when it would last no longer than 20-30 minutes unplugged, and gave me the 'service battery' message. So I replaced w/ a 3rd party battery, followed the steps on calibrating (draining til it died then recharging, etc.) and have been using it the last year or so, never getting more than about an hour of charge, but it would at least say it was charging to 99% usually. It's recently degraded pretty quickly and now it won't charge past 48% or so, and is giving me the 'service battery' message. I tried running diagnostic by holding 'd' while booting, but that hasn't worked even with my original installation disc. So I took it into the apple store today, they ran their network diagnostic and it showed yes the battery's not charging. They said they can't service macs as old as mine, and said it might be hardware components causing batteries to drain unnecessarily. Their only suggestion- reinstall O/S or take it to a third-party repair place to test the components. Any advice short of taking it to one of these repair places? Thanks for any help!