> I have, in fact, gone the other way... I had installed the 10.3 > preview shortly > after it's announcement, and my battery life instantly went from 4+ > hours per charge > to roughly 2-2 1/4 hours. I've reset all manner of settings I can > think of, but nothing > has brought that count back up. I've since re-installed 10.2.6, but > have seen no > change... any ideas? Offhand, I'd venture a barely-educated guess that the 10.3 preview might have caused an increase in disc access for VM operations (being as it's a beta version and still in development); but that wouldn't explain why the situation wasn't remedied when you reinstalled 10.2.6. I'm stumped. BRIAN/bpearce at cloud9.net