I had been having difficulties with presentation of my pages and they were complicated by not having an accurate display when switching to the visual tab in HTML Editor (latest version of 2007). The view was not the same as the page on the web after I uploaded the page. The preview was the same as in the visual tab, but the browser displayed the page differently.

I kept moving the text left or right, saving, then uploading and viewing on the web until I got it the way I wanted. The site and page were LHS58.COM - In Memoriam link.

Well, unfortunately, WYSIWYG editors are not really a precise science-- the nature of absolute positioning itself will mean that sometimes things just won't -quite- line up across all platforms and sources. As you've discovered, the best thing to do is to tweak it until you're happy with the outcome.