I am working with vegas movie studio 4.0 and what im trying to do is import and edit home videos. I have captured the video and it is fine. i have edited and the video to my hearts content and i have split the video into 7 parts.

The problem is that 2 out of the 7 parts (part 4 and part 7 if thats any help) are out of sync. I have tried it with transitions, with only fading in and out and without anything at all....every time the video is still out of sync. And it takes a good 6 hours each time so before i try this again i would like to know if there is anything that will change this

Thanks