Love your gorgeous bird shots in the show Mike.
I'd love to have a 400mm for those kinds of bird shots. My 70-200 is my longest lens and doesn't reach that far.
I'm wondering when I'm watching full screen why the space bar doesn't pause the show as it should. Instead, the page down button is what pauses the show which is not how it should be working. Puzzling..... Not likely your fault but maybe a Presenter bug or some recent change in those features I missed perhaps?
Mike, did you remake this in Version 5 by any chance? The controls work as they should when viewing an older show of mine but in this one, they work differently. Just wondering.