Can't see SCM and dependencies changes report

[Tl-sis-service-center10]

Hello, I have a maven 2 project built with continuum 1.3.6
All works fine but not the reports part.
For each build, I can see the surefire report of my project'builds but
for the scm changes and the dependencies changes it tells me that
nothing have change (well in fact many changes happened)
 
Is there a special property to turn on to enable theese reports?
 
thanks a lot
 
Alexis