ericirwin: i seem to lose them after about 6 or 7 rounds usually caused by a stutter in the shot bar.
Most normal times, if a few rounds are played one after another, sometimes sooner, the shot bar will start showing unpredictable movement. The very second I see this behavior, which begins as you draw the bar back, I know it will not improve. I just save & quit, shut down completely, then re-up freshly. Then the stutter is gone and the bar becomes smooth again...for a while. Then I repeat the inconvenience. ;-}