aquova
Cowpoke
When you are scrolled up towards the top of the screen, there is a "sub-header" that has navigation options (Forums > Support). Scrolling down, this header goes away, leaving only the Find/Search/New/etc. header. Maybe it's just me, but I like having the navigation there, it makes it easier to navigate to other boards once I'm done with a thread, and makes is less disorientating where I am.