i've original H.264 at 1920x1080 footage from 5D mark II in latest FCP 7. i'm really bumped that i cannot see an effect that i can review in real time! Something as simply as applying slow motion, 30% speed, the time-line bar does RED and when i try to play the clip it says UNRENDERED. Why is that ? Doesn't it supposed to manage to calculate stuff like that in real time ? What am i doing wrong ? I remember when i fooled around in Adobe Premiere CS4, it does pretty much all stuff in real-time preview. MBP 2.93GHz, 8GB RAM. the footage is on FW 800 RAID 0 drive.