Update:
I was messing with the configuration of CB and found that if I click YES on show empty tabs, it does the same thing as turning on the CB Activity plugin. The remaining tabs for My Blog and Groups disappear and the remaining items stop working on that page. I uploaded screen shots to show what is happening.
This is with CB Activity turned OFF
This is the CB Configuration that I changed
This is the result of making that change
That is the same thing that happens when I publish CB Activity. I wonder if there is something wrong with CB Core. What do you think?
Ryan