I'm sure this has been answered before but for the life of me I can't find an answer. So I'm editing on a Macbook Pro 2.16 GHz with fcp 6.0 and I'm trying to edit with the M proxies. (I plan on using crimson). Anyways every time I try to do any kind of effects or render I get a green screen filling the whole screen. Is this because the footage is raw and it won't let me? Does anyone know a way around this or are the proxies just good for straight cuts and nothing else? Meaning I can't work with any effects, fades, dissolves, etc?