We just got the newer version of UT installed on our TFS2012 install. According to the documentation, Work Items not assigned to a column should show up in a "these items need your attention row".
This was happening for us in the 2010 version but is not happening now. I haven't made any changes to the UT config file and we are using the v2.0 scrum UT configuration.
I could modify it, but if there is something else to 'enable' for the 'these items" section please let me know.