This was increased to 16 for SolidWorks 2012. Please see this help topic:
Are you not seeing this (since your profile says you are on 2012)?
That's great news! I don't know how my profile decides what version I'm on, but I'm currently working in 2011.
I have 16 files in my recent docs list, so I don't understand your 9 limit!
Edit: Drat he got there before me.