I see.
If i remember correctly the audio for avi files use the key frame to keep the audio in sync. The keyframe is every frame and this should only apply to audio syncing issues.
I didn't want to do this because i have a lot of video files. Would ripping the audio from the avi file fix the issue?
I can't believe a professional piece of software can't handle something this simple.
Ill try ripping the audio into different formats tomorrow and get back to this thread with the results.