BibWorld,

At first reading, what you suggested didn't make any sense to me...

Turns out that the difficulty is that I create the slideshow and then simply click the "Manual Advance" box in the slideshow's properties screen.  Since this makes all of the slideshow's slides manually advanced, what you suggested didn't seem like it would work.

However, and this was new to me but clearly obvious to you (and probably most others), if I unchecked the "Manual" box for the slideshow, select all the slides in the slideshow, and check the "Manual Advance" box (at the bottom of the properties screen) for the selected slides, I still get a Manually advanced slide show, but I could then add another slide (as you suggested), set a low duration on it and then the slideshow's End Action kicks in!  Brilliant!

It does mean that I'll need to remember to treat Blu-Ray slideshows differently than the DVD version, but if it fixes the navigation problem, it's worth the slight extra effort!

Thank you VERY much for your help!  This is probably the BEST answer to one of my plethora of questions that I've ever received!

You're quite right that Adobe doesn't support slideshows much.  They used to have a good slideshow creation ability within PhotoShop Elements, but then they decided to NOT support widescreen and/or HD slideshows and I stopped using that.  They may have another, non-Creative Suite, application that they suggest one use for slideshows, but I haven't found it nor am I willing to spend the extra money for it (or at least the prices they ask)...

I gave up on using Encore to do my "automatic" slideshows quite awhile ago.  I build those, generally with background music controlling the timing, using other applications, using Encore only for the "manual" or "step through at your own pace" slideshows.  I've never experimented with manual slideshows using transitions, certainly not in Encore.

I like Encore, I really do, but wish that they would actually update it to the 21st century!  I really don't feel that I've seen many "big" changes in Encore since it first came out  (at least ones not related to Flash and/or web-related things), and their unwillingness to make it a true Blu-Ray disk creator is intensely frustrating!

Anyway, rant over!

Thanks for your help!