Since installing the battery firmware update, my MacBook has reset itself about 4 times, twice when opening the lid from sleep I've seen it at the "starting Mac OSX screen, once while typing and once I left it for a minute, came back and saw it loading. All times I was doing basic things, just Quicksilver, Safari and Mail open. All times it restarted as opposed to turning itself off. All times it was just on battery, but the battery was above about 80% each time. When I looked in the logs the last time it happened the log file just said it was waking from sleep. Has anyone else had this? I believe my Macbook was fine before, but I've only had it about a month so it's hard to tell really whether it is as a result of the update or not, but I've only noticed it since then.