Seems like a simple case of a single video file perhaps being the problem. Another clip from the same camera did fine. I might convert the one problem clip into something else. Anyway, I'm fooling with it. If the problem seems bigger than that, I'll get the other info you ask for.
I'm curious about some other things though.
1. Why in PD 9 can't I put a transition at the end of a show? The workaround I finally did was to add another clip to the end of the show, put in the fade transition between them and then remove the final clip (the one I used simply so I could have the fade out. PD 8 would let you put a transition at the end.
2. One thing I've never figured out is how to mute the entire audio track of the videos, but then activate the audio on just a few of the clips. What I end up having to do is individually mute each clip so that I can have a few with sound. Seems odd with all the music videos people do that there isn't a better, faster way to do this.