I finally figured out how to fix the paragraph formatting problem.
Where I have a stubborn problem with a para break, I do a hard return, and type "break" - without the quotes.
Then I go into the text editor (html) and search through all the gibberish - at least it is to me! - and find the work "break". I then type in one of my few known html codes between the brackets: <br>
Finding the correct text and grabbing the correct brackets is tough, but after a few tries, I think I did it.
Of course, I am always surprised at how different the format looks on eBay as oppposed to here on Auctiva.
And that is not a particularly easy way to fix a paragraph break!!!
I always check the preview - that's when I generally find the hard return didn't work...again and again and again...