This happened to me as well. It looks like they are only counting flights on roughly 2/27/2012 and after as current activity. All my flights for January and and just about all of February are showing up in my history, but not showing as current activity. My Segment count dropped from 34 to 18. I have tried calling the MP service center many times, but eventually get disconnected after being on hold for an hour. The one time I did get through to someone he (in very broken english) said I was wrong, and I didn't take all those flights in my history.