Thanks. Yea, I think I incorrectly used the template. I inserted a number of text captions (not place-holders) into my template, and these annoyingly essentially became master slides within my .cptx project - in other words, any inserted slide in the new .cptx project placed after one of these "template" slides inherted the text captions from the "template" slide, and I couldn't delete these text captions. I essentially had to delete the "template" slide and rebuild it within the .cptx project. What is even weirder, is the inherted, un-wanted text captions did not appear during playback or in the film-strip, but only were visible on stage in "editing" mode.
Ryan