RAM was tested overnight and checked out okay.

Yes, I have re-installed Final Cut and the upgrades. I've also run the diagnostics and everything is fine.

I do have more than one internal drive, one of them (my media drive) is partioned. Also, I forgot to mention earlier, both drives have been replaced.

And finally, I am using the Apple USB keyboard.

I know most people are using my setup with no problems, and all the tweaking has minimized the problem. I might playback a half hour timeline five times before it freezes, then only for about a second. That still requires someone to watch every second of every dub, and it's time that could be better spent.

By the way, and I don't know if it's related, but IDVD3 will not work on this system. It freezes, crashes and causes the fan to kick into high gear...sounds like a jet taking off.

I keep hoping the next software upgrade will solve everything.

Mike Avery