The sport of understanding women.
Ive seen this in the past in M3's dropping troops---as soon as you leave the proper position for deploying said ordinance (driver for troops, F6 for bombs) the deployment ceases
here is filmhttp://www.mediafire.com/?iqlgnytmvky
problem solved, bj229r was right I was switching to the belly gunner to see my results too quick. In the past I had only dropped two bombs max so it never happened before.