I have been trying to edit a short video - all I'm trying to do is cut off the first .6 second. It seems to work okay when I place the marker, choose the portion to save (thumbs-up) and the portion to exclude (thumbs down), and then Output to a new file, but it saves the entire file. I have tried this five or six times, same result. What am I missing?

Replay Media Splitter version 1.9 on Widows Vista Home Premium

Thanks.
LK