Adding DW Editable Region to Rounded Corners breaks background images

I created a html file with the css sculptor 3's rouned corners (Awesome product!). I changed the grapics, output the slices and everything is fine. I can edit the html file just fine to change content and the layout flows properly. When I convert the file to a dreamweaver template, and then insert an editible region, a slender horizontal slice of the background color appears. I'll upload the files to host shortly.

Once you have the files uploaded and provide a link I will be able to investigate the issue to see what is wrong.

Well, I published the pages to a live server and I don't see the slice that is visible in DW in the design view. I'll post some thumbnails here.

I'm beginning to think it's a feature in DW, something set to visible, perhaps?

EDIT:

Ok, in DW, checking live view makes the black stripe go away. Under View, Visual Aids, Invisible Elements, unchecking this item makes the "stripe" go away. I'm guessing this is a headspace and timing issue.

Dreamweaver is not a web browser, sometimes it will not render things correctly in design view, but the browser will render fine, if it renders correctly ion the browser, you can ignore the issue in Dreamweaver.