I’ve had similar issues with FCP for that last several months. LOTS of crashes. Oddly enough, when working with my MacPro, 32 GB 1066 MHz DDR3, 2 x 2.93 GHz Quard-Core Intel Xeon, Kona 3, Apple XRaid, I’m having these issues. When putting a project on a firewire hard drive and editing from home on my iMac, it doesn’t crash. I’ve tried uninstalling the Kona 3 software, but that didn’t make a difference. I’m also editing everything using Apple ProRes codecs… from proxy to HQ, but still have the issues. Every time there is a software update from Apple or AJA I cross my fingers and hope the problems will be solved. Has anyone figured out these issues?