[Stevex]

Ok i bought a ka1
I have one book converted to epub
Very simple css style the same for every para
But one chapter, the last few lines of a paragraph 'disappear' at the bottom of the screen and scrolling to the next page gives the start of the next-but-one para???
It's because the whole page is rendered about 1/2 inch too low.
If i add a few x's to the end if the para, everything renders correctly.
It's just this one para in the one book, same style as every other para and double checked in the live css box in calibre.
This does look like a bug to me. What to do next?