Mike:

I tried your tip of closing BIAB before playing the .AVI file and that works in both Windows Media Player and VLC
HOWEVER
it only DISPLAYS the first couple of lines (8 bars), then the sound continues but the graphic is just a black background.
All this is, again, using Win 10.

I'll try Charlie's idea of using "scroll ahead" and see if that makes a difference.

Thanks for your help!
LLOYD S