Intrusion Prevention In NIS 2010 (17.7.0.12)

How do I know if Intrusion  Prevention has been enabled and is monitoring signatures if it's not mentioned in Recent History like it was yesterday (Saturday) today is Sunday.I know it's On........It was also mentioned every morning in NIS 2010 (Version 6) . Network Security map says it's on! Maybe that's enough? I wish I knew..Thanks....Gorpy1.. XP Professional/2005 Media Ed. SP3