1000x this. I've turned to dtrace twice in the past several weeks to find fixes for serious issues on other people's computers. One was a segfault at startup in

1000x this. I've turned to dtrace twice in the past several weeks to find fixes for serious issues on other people's computers. One was a segfault at startup in iTunes caused by a corrupted cookie cache. The other one was a corrupted plist that prevented adding new exchange accounts or calendars to mail (with no indicators at all -- the new account would just hang indefinitely).