Forgive me if this has already been posted, but I did a search and couldn't find my specific problem. A few weeks ago, I was using the trial version of Video Converter to convert .mov files to .flv files and it was working great! Today, however, I upgraded to the paid version and now when I do a conversion, the finished FLV plays audio but no video (only a black screen). I tried three separate flv players and the same results with all. Any ideas?