So i was "agressively" driving my 05 Crossfire coupe the other day and as i quickly approached 80mph there was a loud thud and the car seemed to pop out of gear (auto tranny). If I step on the pedal the car just rev's and goes no where, however I pulled over and put the car into park and then shut it off and turned it on again. The car went back into gear and continued to drive fine. Any idea's why this is happening. It has happened 3 times now. I saw the other page regarding low tranny fluid - any other ideas!

Thanks!