FSX issue: Ailerons stuck in bank left angle

I have never had this problem before, and it is going to sound weird, but when I was trying to do a flight from Pittsburgh to Atlanta today in a McDonnell Douglas MD90, for some reason, my ailerons are stuck in a left bank angle. This problem wasn't there yesterday, when I did a flight to Alaska. I am trying to do part 2 of a flight from Pittsburgh to Montego Bay Jamaica via atlanta in an Airbus A320, operated by Delta, and I have the same problem on that aircraft as the one I flew from Pittsburgh to Atlanta. The ailerons are stuck in a left bank angle. I don't know how my controls got messed up like this, and after checking the controls section of FSX, I can't seem to know where to locate the problem. I need help before I do any more flights. any suggestions on what I should do? Has anybody had this problem that I am having?
Regards,
Evan
Regards,
Evan
