Captivate 5 | Synchronization issue if file is published to F4V format

Hi,

I have a project where the first few slides are PPT files, in-between are regular slides captured using the Captivate Recording feature, and the last slides are PPT files. The timing is good from the first slide up to about three fourths part of the entire video; however, towards the end, the video goes in fast forward mode. As a result, the audio is way behind. The video is all ready done and I end up with a blank screen while the audio is running. This does not happen if I publish to Flash format (SWF). Note that each of my slides has the workaround mentioned in this article -> Audio Video Sync in Captivate Published Movie. 

Help!

Thank you in advance for your assistance.

Regards,

Rose