Our Atrium project is setup to have the dashboard as the default screen. http://www.myintranet.com/ is the dashboard.
For the home page dashboard the admin has added two blocks via customize dashboard ( Atrium Blog - blog_listing:Block and Upcoming events ). The blocks appear fine for the admin but no other user sees them.
We have customized the dashboards for the groups in the same manner and they show up.
and adding the blog_listing block, it shows up for the admin that added it but nobody else.