Live Update Not Working 2011

I recently upgraded two computers to NIS  2011. On neither computer does Live Update seem to work.

 

Both computers, show 18 hours since last update (when I installed and updated).

 

Just turned one computer on , no update. If I click Run LiveUpdate, I get updates.

 

In NIS 2010, l;ive update worked automatically. Is it a bug or am I doing something wrong here?

 

Thanks,

George