Testimony; also posted in an Apple Discussion. I started my brand way-the-hell-too-expensive 15" superdrive up in firewire external drive mode by holding the "T" key during startup. I connected to my older Ti 550ghz running 10.2.6, which hasn't given me firewire problems previously. I transfered some files and restarted. When I restarted the new machine it gives me the missing OS folder logo. I ran disk utility, it said everything was good. I ran permissions repair, then reinstalled the OS and ran it again. I started up with the reinstalled system and ran Virex (found nothing), then because I'm such a forgiving guy I tried the firewire transfer again to make sure it wasnt something I did. The OS of the old Ti gives me an alert that said one of my 3 drive partitions was unmountable, one was unrecognizable, and one didn't even try to mount. I wonder whether there is an archetecture conflict or some kind of massive and very wrong problem with firewire mode in OS 10.2.7... Either way I wish when I spend this much money things would go the way I want. Honestly other than that the thing runs quieter, cooler, and way the hell faster than I thought it would.