Thanks. Will probably try resaving the html pages as text. Shame about the pdf viewer idea being dead.
Sometimes find I can't remember something about rockbox, while I'm using it and not near anything with web access.
Though, now I think of it, most of the time it's either forgetting the distinction between "insert next" and "queue next" or forgetting how to change the playback speed of podcasts. Probably be simpler to just to try and once-and-for-all remember those two things.