When I add audio to my videos the sync is perfect, but if I don't play the video from the beginning, the audio still starts from the beginning no matter what. Also, if I do start from the beginning and click back in the video, the audio just keeps playing forward instead of jumping back with the video. I'm running a Windows 7 i3 4GB ram 7200rpm. i just reinstalled it and the problem still exists. Any help is appreciated.