I'm pretty sure my wall is activated since people have been writing on it. Unless activating it gives it some kind of "Wondertwin powers."

Now that would be cool!
The problem (for me) is that after after there are 5 or so posts on your wall, older posts disappear. I just realized last night (thanks to Al!) that you can hit the "show all" button and, well, show all posts. Not sure what I would do without my fellow TGers to lead me through the dark! The ironic thing is that I'm married to someone with a PhD in Computer Science, yet I'm one of the most un-tech-savvy people around.
Oh, and Al, I apologize that your thread got hijacked. This thread is supposed to be about palm-muting, not Walls and all their little quirks.