I tired that, however, it also disables the "Recently Used". If you read that label, it say's "Stored and displayed". As I said, I like seeing the recently used that appears in the Start Menu, because I often use the same apps over and over, and I can quickly open the one that I need, but I don't often reopen the same doc, or other file that I had used previously. That option disables both the "Recently Used" and the "Recently Opened".
I want to be able to use the Start Menu the way that I was able to under XP & Vista. Both of those had a separate "Recently Opened Doc" on the right side of the Start Menu. If I needed to reopen a recently opened doc, I could quickly find it in there. Windows 7 doesn't seem to have that option. I find the current option very annoying.