Why is tests tab not showing on build view since moving to indigo?

 I have recently moved from RTC 3.0 (mac) client  using embedded eclipse to installing P2 RTC 3.0 into eclipse indigo (to get ant 1.8).  In my old client, the build overview page includes the test results (in the Contribution Summary section) and there is a 'tests' tab which provides details of which tests ran/passed/failed.  In my new client install (RTC 3.0.2 installed via P2 into eclipse indigo SR2), the build pages are there but the test information is missing.  I have a colleague using (apparently) the same install with no issue.  Is there some configuration I'm missing?