I’ve been working on this now for 24 hours, I won’t go through all the steps I’ve taken for testing, I’ll just summaries some of what’s happened.
I got a message that the latest 10.6.2 update was available through the “Software Update” application so I downloaded it on both machines through the Software Update application. The upgrade went fine on the Imac – no trouble whatever- but I lost sound on the Macbook and couldn’t get it back no matter what I did, tried to raise and lower volume, tried to manipulate output device in System preferences but no joy was had and of course its an absolute bonus to deal with not being able to see the screen .
So what to do? I restored a backup I’d made of the system and then applied the update again, same problem. I then reinstalled Snow Leopard and transferred my user settings from the backup, applying the update after that, no joy.
After a few hours sleep – I was absolutely exhausted – I went back to work on the project trying different things, one was to download the “Comb Updater” for OS10.6.2, reinstalling Snow Leopard, transferring the user settings from the backup and then applying the “Combo updater”, again no joy.
So now I’ve installed a completely new system and I’ve transferred user settings from the Imac using the Migration Utility, so far so good.
I’ve had a few messages from people, they suspect that there may be a problem in one of the preference files, this sounds about right so I’ll keep the backup files and do some further experimenting over the next few days but no more please! for at least a couple of days, I’m sick to death of installing and reinstalling at this particular point in time .
