Need Help. VSE Preview is all Black

Hi, I have imported a .mov file into the compositor to do some compositing. I imported the .mov and then adjusted the lighting and then rerendered it as a Quicktime movie but the movie rendered totally black.

When I rendered the movie I could see it quickly rendering each frame so I am not sure why the final render is all black. Something a newbie to the VSE has missed I’m sure.
Am i correct in assuming the Video Sequence Editor window shows what will be rendered? I noticed the “Video Sequence Editor” preview was all black when I rendered the movie.

Any ideas what I can check for?

Thanks. :slight_smile:

From what I’ve read it sounds like this is an issue with Blender 2.5 and some video cards.

My video cards are:
ATI Radeon HD 2600 XT
NVIDIA GeForce 8800 GT

Just to make sure I’ve set this up correctly could someone please tell me if I’ve selected the correct settings in the VSE?