Thanks to both replies. I appreciate your time. Unfortunately, the instructions are essentially the same as those on about 5 sites I looked at before asking. That included at least two on the NCH website. Nothing works. I wonder if the program is compatible with win 8.1. I used to do simple editing with previous versions of the NCH VideoPad Video Editor and VLC Media Player under Win 7 Ultimate. My new computer came with Win 8.1 (which works well for me despite a lot of chatter on the web with complaints). I can't edit with either. Just as an example, I open a short 7 second video (*.AVI from a Cannon camera). It plays and I can set the opening and ending points (Red and Blue) but there is no way to clip. If I drag it to the Video timeline, there are only the last two seconds.
The program is free so I don't feel comfortable complaining. I am sure some smart people spent a lot of time on it and are proud of their work. Too bad it doesn't work for me.