[Laurence Halstead]

I had this problem today but found a solution which seemed to work for all the videos I downloaded off vimeo.

If you open in QT 7, trim and delete the 1st frame off the video. Then go to export to the desired format (in my case ProRes) it seems to work fine. It appears that the 1st 2 frames are identical so it must be something Vimeo does when you upload to itto safeguard its terms and conditions.

I hope this helps!

Laurence