VSSindor Light Indoor?  Is this an original light set from BB?  IIRC, those light set were incorrectly created, casting a higher intensity than they were suppose to.  Try decreasing intensity values or create your own.  The difference between VSS3 and VSS4 is that VSS4 has auto gamma correction built into the shaders.  VSS3 does not.  That might explain the washout effect in PP2010 if Gc is active in your render settings.