Patrick,
I'm seeing the stream posts, like I'd expect. I just looked at the Like Box (Fan) description page from Facebook, and it looks like they added a new parameter:
force_wall - for Places, specifies whether the stream contains posts from the Place's wall or just checkins from friends. Default value: false.
developers.facebook.com/docs/reference/plugins/like-box/
We don't currently support that setting yet, and without it, it should be defaulted to 'false'. However, on your 'nothing works as expected' site, it seems to be defaulting it to true.. for just you.
I'm assuming you're using Chrome, which we've seen other problems with in the other posts. Can you try in FF where you've had better luck? That will help narrow down possible causes.
Thanks,
Alex