Really appreciate how attentive you are on these forums!
I added buddypress theme support as you suggested in this thread- http://wordpress.org/support/topic/cbox-compatibility?replies=9
That helped a lot, but I'm still getting a second buddypress menu, generated in the main content section of the profile page, above the directory. I've posted a screen shot here: http://i.imgur.com/lUNpvFI.png?1
The weird icon stuff can be ignored: that seems to just be happening on my wpengine staging area, and not on my live site. The layout issue is with second menu.
I know Bowe is working on this, but any help in the meanwhile would be appreciated!