Scroll two-up documents as single page

I have Adobe Acrobat 8.1 running in Windows 7 and I would like all of my documents to open as two-up page view but I need them to scroll as single page.  Is there any way to make this a default setting?I dislike viewing a single page at a time just so I can scroll one page at a time.  I want to see two pages while scrolling at the one page setting so that when I scroll I would go from pages 1-2 to pages 3-4, if that's understandable.

Any help is greatly appreciated.