> Do you need to do that to replace a battery? I didn't think so. But it's required for software installation, right? So I think that's what happened. Wouldn't that explain why mine is still completely updated today? (I "ran" SU manually again just two hours ago, by clicking on its name in the Apple menu.)
Correct, depends on the update, and sounds like it.
Sounds like that, combined with a coupl'a breakdowns in communication, explains what happened.
