How do I enable the Memory Overview in HANA Studio?

I read John's blog about the SPS7 features:

http://scn.sap.com/docs/DOC-49991#comment-467746

Now I wanted to see the Memory Overview myself. I granted the role sap.hana.admin.roles::Monitoring to user SYSTEM and opened the Memory Overview. This is what I get:

I cannot see the Memory Overview with HANA revision 70, 71 or 72.

I cannot see the Memory Overview with HANA Studio running on Linux or Windows.

I cannot see any entries in the tracefiles of the HANA database.

The same problem with Resource Utilization, I get a blank window.

The HANA database is up and running. Database, Client and Studio are revision 72.

What do I do wrong? It seems that I am not the only one affected.

Regards,

Mark