I recently upgraded from CS5.5 to CS6. Since that up grade I notice that Live View no longer renders the CSS slider color for a DIV box correctly. I am using the following: scrollbar-face-color: #1FFF40; CS5.5 does render it correctly, CS6 does not. Anybody else seen this?
scrollbar-face-color is not a standard part of CSS. It's supported only by Internet Explorer and Opera.
Dreamweaver's Live view is based on the WebKit browser engine, which is the same as used in Safari and Chrome, which don't render scrollbars on Mac OS X. The browsers in most mobile phones and tablets also use WebKit, and they don't display scrollbars either.
I suspect that the new version of WebKit in Dreamweaver CS6 Live view simply doesn't support scrollbar-face-color, and is unlikely to do so in future unless it's adopted as part of CSS3 by the W3C.