I am using Vista and I purchased edit pro 14.  I can capture all the video from my DV camera which is about 75 min worth of video, but when I go to edit the video on 45 min show on the edit screen.  I can see the rest of the time in the timeline but there is no sound or video.  If I open the file with media player I can play and edit all of the video.  How do I fix this problem.