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Thank you all for your responses. It turns out to be largely a matter of Operating System and Browser. By switching from Windows XP and Firefox, to Safari on a Mac using OSX, I am able to almost completely eliminate the problem. It has to do with the way the different browsers handle coding for line breaks, fonts, and styles. At least, that is my conclusion, somehwat backed up by support at CC. Anyway, thanks to all. Happy New Year!