That is actually what I meant 🙂
It’s not really as big of a problem to solve as you might think. It has more to do with the theme styles being loaded for the editor and not all the styles are being loaded, therefore it probably looks like it does when you have the editor open. The fix for this would be what I started with my recent theme Circumference where I load all the CSS. This allows the editor to look just like the page would on the front-end…makes it much better to work with.
I would like to test this out locally on my test site if you could provide me with the source code of your page so I can create one….including any images you have for it. It might be better to send me the page code (from the text tab of your editor) and the images in an email. Or, if you have a link to the page, then I can just grab the code myself.