Originally Posted by PeterT
If you look at the library view what format does it show next to the book?
Ah, thanks for that diagnostic tip, PeterT.
==> The two titles that aren't displaying the font-change icon are indeed being read as PDFs-- even though downloaded ostensibly as epubs.
I suppose I'll check w my library consortium about this. This has never occurred w my Nook ST, so seems to be some kind of Kobo incompatibility, eh?
Thanks much for the help, everyone.