I'm using FCP 7, and it keeps crashing. I've already tried trashing the prefs, and that doesn't help. My media is stored on an external G-Raid drive, and it is apple pro res 422 quicktimes. I've imported a few of these files into my project bin. When I scrub through the clips in the viewer, FCP crashes. What's happening here? Should I not have my media on this external drive?