Benjamin of Copyscape, thanks for the reply.
Maybe there was just a kink yesterday so I couldn't see the Compare Text button anywhere.
Anyway, maybe I'll just copy the screen next time. But I hope I'd encounter
no more problem.
Thanks for Copyscape, and thanks for making it affordable to many. Most of the other duplication/plagiarism checkers which were free before are no longer free, and the fees they charge are not affordable to freelance writers here in Southeast Asia, and probably even to a number there in the West.
Anyway, all clients are still using/requiring Copyscape (as seen in all Craigslist ads, Freelancer.com ads, etc.) so I hope the economy of scale works for Copyscape.