Uncommanded underlining appearing in postings

[skippiebg]

Hi -- I started a topic, inserted some photos, and find that the text below the photos is underlined. I have not selected the underlining format option. I cannot remedy the problem. I tried selecting the underlined text paragraph-by-paragraph and switching underlining on and off; and also selecting all the text in the posting and switching underlining on and off. Wondering is the issue might only be visible to me, I logged off and on again. No joy... Please help -- thank you in advance!

 

Incidentally, the affected text was also blue at first. I succeeded in making it black. But the underlining remains...