Uh Clem's Admin World

I started getting the error below when I launch my Notes 8.0.1 client.  I also get it when I try to set a different bookmark (workspace of course) as my homepage.   I searched the web and only found one posting which was ND8 feedback in the ND8 forum, but this posting related to starting the admin client first, which I am not doing.

So I tried to do the obvious and create a ClientBookmark.nsf file using the bookmark.ntf template.  This seemed to work!

Even though the problem "seems" to be fixed I'm left with some questions.   Why is there a ClientBookmark.nsf in addition to the Bookmark.nsf?   Isn't one enough?  Also, why don't I find any documentation on this?