I am having a problem with FCP 6.0.2 unexpectedly quiting on my new 2.8ghz Macpro. It's doing it in the log and transfer window while sorting through P2 footage from an internal SATA drive. (OSX 10.5.2 with 8GB of RAM)
I thought it could be a QT 7.4.1 problem so I just tried updating to 7.4.5 and guess what??? It still crashes...
repairing permissions and trashing prefs doesn't help either.