...It wasn't a rhetorical question, but it looks like no answer is coming.
Sorry, [id://tye], I thought it was a rhetorical question. My apologies.
Actually, your reference does explain the problem, which apparently is one that would likely affect everyone. The page on which this problem occurred was one in which there were long strings of code without whitespace. I've got Auto Code Wrap going, have the wrap width set to 50 (I even tried 20, with no effect), and still got the effect. My screen is wide enough (1280 px.). Thanks for referring me to the article - it was indeed helpful in explaining what was going on.