Hmm, I think maybe I've read the white border problem differently. If it shows consistently over 3 devices with the Sigil version, and consistently without a white border with the Calibre version that would say to me that it's Sigil. I agree it may have been the coding, but seeing as I did almost nothing in the way of coding, basically left it up to the programs, (both of which I like a lot) then it's not
my coding as such. Coding has fixed the problem, and again thanks Turtle91.
And Diap - thanks, you do what you need, I am very much a newbie here, but rubeus didn't upset me. I have a very thick skin