>if your style sheets are located - with full urls, dreamweaver does not render them when editing them, the style sheets have to refrenced as local files or partial refrences like /mystylesheet/ut.css or mystylesheet/ut.css.
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>Of course you should check what site you are working on / with. I manage a few sites with dreamweaver, and If i am not careful, I start working with site A thinking I am working with site b.
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>I assume you have checked these settings, (as your site is great) and you know what you are doing ! other than that, sorry I can't think of anything.

All links are root relative. It works well in editing. I have a page which contains an include tag. That pages is also added in editing mode as well as in preview mode. However, the root relative tags from that included page is ok in editing mode but not ok in preview mode. It seems the 2nd level is not constructed in preview. That worked an hour ago. This is what I find strange. I am trying to see what I changed.