I am running Microsoft Security Essentials 2.0.657.0 like I have since it came out. Recently I noticed it once in awhile (not sure how often) tells me (changes to orange) I have not ran a scan in awhile, system might be at risk. I have looked through my settings and it's how it should be. Running a scan at 3AM and real-time is on, etc etc. Yet it tells me one has not been run. Any ideas?