Many thanks to all who have responded so far--it's interesting that half
report no problems, while others have sporadic problems. Thanks to
several helpful suggestions, I have included "catalog" and "entityrc"
files; I didn't have them before, because the manual specifically says
that I don't need to, as I have a system identifier in the doc type dec.
But that wouldn't be the only place that the manual is wrong. I wonder
if those of you who tried it would try it again and let me know if it
still works/doesn't work for you. Thanks for your patience.
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