I've just tried using the project management/trim in PPro CS5, having not bothered for some time. (The last time I used it was before CS5.)

I find it's correctly trimming any video file EXCEPT Cineform, where it copies the entire source file to the new location. Is it just me or is anyone else having this problem?

me too... :-((
i did manual trimming with virtual dub... so long and no simple.
i need to start to study batch for virtual dub/avisinth, that can help a lots :-P